I recently added a new credit card to a constituent. I then found out that was an error in the sort-code number - one digit was incorrect. I then tried to change it to the correct one. It seems that I was able to change it, but on checking afterwards, it hasn't actually been changed and the incorrect card is still showing in Transactions > Credit Cards.
I've tried adding a new card instead, but this generates a message saying that the card is already in the system. Have tried this a few times and I can't see the new card anywhere in the constituent account. There is only one card showing in Transactions > Credit Cards and this is the old - incorrect one.
I'm using the same methods I've used in the past to change an existing credit card or add a new one and haven't come across this problem before.
Any help appreciated
Thanks