The icak card has been phased out, with all customers being required to use a new debit card, the icash, for their purchases.
However, you can still use the icak for payments for things like hotels and holidays.
The new card has a £5-a-month limit and can be used for payments up to £1,000 a month.
You can still pay with a credit card for those purchases.
It has been widely criticised for being too easy to get hold of and too slow to process.
It was even a subject of an internet petition.
This is a new version of the icac card, which has a similar £5 limit and will only be available to customers who have used it for at least two years.
However it will be free to use for purchases of up to 50p from the beginning of next month.
In the meantime, all customers can get a free two-week trial of the new card from 10am on Monday, October 2.
This will be extended to 20,000 customers in February.