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Lost or stolen SIM

Report a lost or stolen business SIM

Call TISA on 01908 737 500 now and we will block the SIM immediately, so no calls, texts or data can be used on it.

Do that first, read the rest after. Until the block is on, the line is live in whoever is holding it.

01908 737 500Tap to call the TISA business support desk

TISA Business support is open Monday to Friday, 9.30am to 5pm. Outside those hours, email [email protected].

What happens

Four things, and only the first is urgent

  1. 01

    You call, we block

    Give us the mobile number. The SIM is blocked there and then, so no calls, texts or data can be used on it.

  2. 02

    We confirm the account

    We check you are authorised on the account and note what happened, so it is on file.

  3. 03

    A replacement is posted

    Sent by tracked post to the registered address on the account.

  4. 04

    You call to activate

    Put it in the handset and call us. We move the number across; the old SIM stays blocked.

Read these two

Two rules we cannot bend

Where we post it
A replacement SIM will only be posted to your registered address. If your SIM was lost or stolen whilst abroad, you will have to wait to return to the UK. We cannot post it anywhere else, no matter the urgency or the reason for the request.
What you are liable for
You are liable for all calls made from your SIM. The onus is on you to report it to us at the earliest opportunity so that we can put the temporary block on your SIM. Anything used before the block reaches your account.

If the handset went with it, report that to the police and keep the crime reference. TISA blocks the SIM, not the device.

Questions

Asked most

Will I keep the same mobile number on a replacement SIM?

Yes. A replacement SIM carries the same business number as the SIM it replaces. Nothing about your number, your plan or your billing changes. Only the SIM itself is new, and the old one is blocked permanently.

Can I block the SIM myself without calling?

Calling 01908 737 500 is the fastest route, because the block goes on during the call. Outside office hours, email [email protected] with the mobile number and the word STOLEN in the subject line.

Business support

If you have not called yet, call now.

A blocked SIM can be unblocked if it turns up in a coat pocket. An unblocked one cannot un-spend what somebody else has used.

Call 01908 737 500Monday to Friday, 9.30am to 5pm WhatsApp Message usWe reply during office hours Email hi@tisa.oneInclude the number affected and your account name

Service status is published at status.tisa.one.