Chess Telecom Complaints & CISAS: A Step-By-Step Guide for 2026

Why a Formal Complaint Matters

If Chess Telecom has charged you incorrectly, failed to deliver a service, locked you into a contract you do not remember agreeing to, or added services without your consent — the path to resolution is a formal, written, documented complaint. Not a phone call. Not a chat with an account manager. A proper complaint that leaves a paper trail and, if needed, escalates to CISAS.

This guide walks through the process end to end. We are Compare The Networks — an independent, OFCOM-regulated business telecoms comparison service. We are not affiliated with Chess. We are not making direct accusations. We are explaining your rights.

The One Rule That Runs Through Everything: Keep It in Writing

Before we go any further: keep everything in writing. Do not accept verbal resolutions. Do not settle on the phone.

If Chess calls you about your complaint, say: "Please put that in writing and email it to me. I want to review it properly before responding."

Any legitimate company will respect this. If they refuse, that itself is evidence for CISAS.

Why it matters: if your case reaches CISAS, the adjudicator weighs written evidence far more heavily than your recollection of a phone call. A verbal settlement that Chess later disputes leaves you with nothing.

Step 1: Identify What Kind of Complaint You Have

Before you write anything, work out which category fits:

Misselling — you were told one thing, signed another. See Chess Telecom misselling.
Contract length — 3 years turning into 5. See Chess Telecom contract length misrepresentation.
Service failure — outages, broken portal, porting not completing.
Billing — overcharges, services you did not order (e.g. Dark Web Monitoring), post-cancellation invoices.
Price increase — bill jumped mid-contract. See Chess Telecom price increases.
Early termination fee — you want to leave and the fee seems unfair. See Chess Telecom early termination fees.
Customer service — unresponsive, AI bot, deflection.

One complaint can span multiple categories. Cover everything in the first written complaint — do not drip-feed issues.

Step 2: Gather Your Evidence

Before sending anything, compile:

The signed contract (PDF, not a summary)
Original proposal or quote emails
Every invoice since the contract began
Notes on phone calls — date, who called, what was said
Screenshots of portal failures, error messages, AI bot exchanges
Sales call recording — request under GDPR in writing (Chess must respond within one month)
Service disruption logs — dates, durations, business impact

Keep everything in one folder. Date-stamp it.

Step 3: Write the Formal Complaint

Address it to Chess Telecom's complaints team. Send by email so you have a timestamped record.

Structure

Your details — account number, company name, contact
The issue — factually, chronologically
What you were told / what the contract says / what actually happened — the three-part pattern for misselling
Evidence referenced — attach supporting documents
The outcome you seek — be specific (cancellation, refund, fee waiver, service restored)
Deadline — reference the 8-week statutory period
Note that any response must be in writing

Example Opening

"Dear Chess Telecom Complaints Team,

Account number: [X]. I am formally complaining about [issue]. During the sales process on [date] I was told [X]. The signed contract states [Y]. I believe this is misrepresentation.

I request [outcome]. Please respond in writing. I will not accept any verbal resolution of this complaint.

This letter is a formal complaint under Chess Telecom's complaints procedure. If not resolved within 8 weeks or upon deadlock letter, I reserve the right to escalate to CISAS."

Step 4: Wait for a Response

Chess must investigate and respond. Possible outcomes:

Resolution Offered

If Chess proposes a resolution, get it in writing before agreeing. Review carefully. Accepting in writing creates a binding settlement — make sure it covers everything.

Partial Offer

Chess may offer less than you asked for. Decide whether to accept, negotiate in writing, or proceed to CISAS.

Refusal

Chess may decline. Ask for a deadlock letter — a formal statement that the complaint is unresolved. This unlocks CISAS immediately rather than waiting 8 weeks.

Silence

If Chess does not respond substantively, the 8-week clock runs. After 8 weeks you can escalate regardless.

Step 5: Escalate to CISAS

CISAS (Communications and Internet Services Adjudication Scheme) is the independent adjudicator for UK telecoms disputes. Chess Telecom is a member. CISAS is free for small businesses.

How to File

Go to cisas.org.uk. File online. You will need:

Your written complaint to Chess
Chess's response (or evidence of non-response)
Deadlock letter if provided
Your supporting evidence
A clear statement of what you want

What Happens Next

CISAS acknowledges your claim
Chess is invited to respond
CISAS adjudicator reviews all evidence
A binding decision is issued

Timescales

Typically 90 days from filing to decision, depending on complexity.

Outcomes CISAS Can Order

Contract cancellation with no ETF
Refunds of charges
Bill corrections
Compensation (capped — check current cisas.org.uk limits)
Formal apology
Specific performance (e.g. completing a port)

The decision is binding on Chess.

Step 6: Report to OFCOM

OFCOM does not resolve individual disputes but monitors industry patterns. Report your case at ofcom.org.uk. It contributes to the regulatory picture even if it does not directly help your case.

What NOT To Do

Do not accept verbal resolutions. If it is not in writing, it does not exist for CISAS purposes.
Do not stop paying undisputed amounts. Pay what is clearly due; withhold only the disputed portion, clearly documented.
Do not post inflammatory material on social media. A calm Trustpilot review is fine. A defamatory tweet is not.
Do not delete anything. Keep all emails, invoices, screenshots.
Do not miss the 8-week window. It unlocks CISAS — do not let it drift.

If Chess Escalates to Debt Collection

If the dispute involves unpaid sums — often an ETF — Chess may pass the file to collections. This does not stop your CISAS claim; it runs in parallel. Keep all correspondence. If CISAS rules in your favour, the debt collection should cease.

If you are being pressed for payment of a disputed amount:

Respond in writing to the collection agency, stating the amount is disputed and in formal dispute with CISAS
Copy Chess into that correspondence
Do not pay under protest — you then concede the debt

How We Can Help

Compare The Networks cannot represent you at CISAS, but we can:

Help you compare honest alternatives so you know what a fair price looks like
Provide a reference point for "what a transparent B2B telecoms contract should look like"
Answer general questions about the UK telecoms market

Get a free quote or VoIP quote.

Frequently Asked Questions

How do I make a formal complaint to Chess Telecom?

Email Chess Telecom's complaints team. Set out the issue, reference the contract, state the outcome you seek, and insist on a written response. Keep copies of everything. If unresolved within 8 weeks or you receive a deadlock letter, escalate to CISAS.

What is CISAS and how does it work?

CISAS is the Communications and Internet Services Adjudication Scheme — the independent adjudicator for UK telecoms disputes. Chess Telecom is a member. CISAS reviews evidence and issues binding rulings. It is free for small businesses. File at cisas.org.uk.

How long does a Chess Telecom complaint take to resolve?

Chess has up to 8 weeks. If unresolved, CISAS typically issues decisions within 90 days of filing. Total timeline: up to around 5 months in full cases, often much quicker.

Can OFCOM help with a Chess Telecom dispute?

OFCOM does not resolve individual disputes. It monitors industry patterns. Report at ofcom.org.uk as part of your escalation — it contributes to the regulatory picture but does not directly get you a refund.

Should I accept a settlement offer from Chess Telecom?

Only in writing. Review carefully. Make sure it covers everything — including any future issues like continued billing or negative credit reporting. If it falls short, negotiate in writing or proceed to CISAS.

Explore Your Options

Get a free quote or VoIP quote. 24-month, transparent contracts.

Get your free comparison now.

About this article. Claims reported here are attributed to public reviews on Trustpilot and similar platforms. They represent the opinions of the reviewers cited, not statements of fact by Compare The Networks. Brands named may dispute these claims. If you are a brand representative who believes any content requires correction, please contact us.

Chess Telecom Complaints & CISAS (2026): How To Complain, Escalate & Win