Making a complaint and using ADR schemes

Updated: 17 January 2023

Communications providers offering services to people, small businesses (up to 10 employees) and not-for-profit organisations (where up to 10 individuals work, not including volunteers) must be members of an Alternative Dispute Resolution (ADR) scheme.

Ofcom currently approves two ADR schemes: the Communication & Internet Services Adjudication Scheme (CISAS) and Ombudsman Services.

ADR schemes are independent bodies that carry out an impartial assessment on complaints between a customer and a communication provider, and reach a decision based on the information submitted by both parties. ADR schemes are free to use.

You can take your complaint to an ADR scheme if:

• you have already raised it with your provider and it is still unresolved; and
• it has been at least eight weeks since you made the initial complaint to your provider or you’ve been unable to reach an agreement with them and you have received a deadlock letter.

You can use the Ofcom ADR checker to see which provider belongs to which scheme. It is a long list so the easiest way to find your provider is to use the A-Z buttons below. You can also press the Ctrl and F keys at the same time and then type your provider's name into the search box.

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