You can temporarily freeze your MarTrust card if you lose it, don’t recognise a transaction, or want to prevent it from being used.
Freeze your card
From your Card Dashboard, select Freeze.
All transactions will be blocked while your card is frozen.
You may want to freeze your card if:
You’ve lost your card
You see a transaction you don’t recognise
You want to temporarily disable your card
Unfreeze your card
To use your card again, go to your Card Dashboard and select Unfreeze.