Is your Business TISA SIM Lost or Stolen or Deleted an eSIM?
Take action straight away
Call the TISA support line as soon as you notice the SIM is missing. We will apply a temporary block immediately so no unauthorised calls, texts, or data can be used.
Our incident desk guides you through a secure replacement, typically getting you back online within two business days.
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1
Notify us. We confirm account details and lock the affected SIM in real time.
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2
Authorise replacement. A new SIM is prepared for dispatch with a £7.00+VAT admin charge.
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3
Verify delivery. We only ship to the registered business address to keep your numbers secure.
Contact TISA support
Ring 01908 737 500 and share the SIM number or mobile number so we can block it instantly.
Confirm security details
We verify authorised contacts and capture any incident notes needed for audit purposes.
Receive replacement SIM
Despatched within two business days to your registered address with tracked Royal Mail service.
Activate in minutes
Once inserted, call us and we will switch service across—usually in under five minutes (allow up to 48 hours).
Activation timeframes
Most replacement SIMs go live in a few minutes once you call to activate. Network updates can occasionally extend the process to 48 hours—our team will keep you posted.
Quick Facts
- Immediate SIM blocking
- 2 business days delivery
- £7.00+VAT admin charge
- 5 minute activation
- Registered address only
- Business hours support