Got a text on my mobile phone this morning from my bank. They were querying a charge of £39.99 to one of my credit cards.
I replied with "N" as advised in the text.
Then went to the bank's official web site and phoned the free number. Was transferred to the security department.
After checking my credentials, They said the charge had been stopped, and my credit card cancelled. I will be sent a new card with aq different number.
Took nearly 30 minutes on the phone, but worth it to have peace of mind
It is good to know the bank is monitoring my account and querying any unusual charges.