Provider

Internal Systems Ltd isn't signed up to our scheme, so we can't review your dispute.

You can contact the Communication and Internet Services Adjudication Scheme (CISAS) who may be able to help further. Call 020 7520 3814 or email cisas@cedr.com

Visit the CISAS Website

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Please confirm the following in order to continue:

I've checked that Internal Systems Ltd is the correct provider to raise my dispute against

I've complained to Internal Systems Ltd already

I've received a deadlock letter OR it has been 6 weeks without my complaint being resolved

I have sufficient evidence to support my case, including the date I raised my complaint to Internal Systems Ltd

I have a question Continue dispute

Let's quickly check if you're ready to register your dispute:

Internal Systems Ltd matches the company name written on the account holder's bill.

It's been at least 6 weeks since I first raised the issue with the supplier (or I have received a Deadlock Letter).

I have sufficient evidence to support my case.

Ready to raise your dispute with us?

Raise dispute

Internal Systems Ltd isn't signed up to our scheme, so we can't review your dispute.

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