For the last few months, my Card has been re-issued every few weeks. Phoning Support suggests that this is down to a data-leak from ‘a merchant’. Each time it happens, I spend around an hour changing all my online payment details. And then it happens again. And again. Support can’t give me details other than ‘a merchant’. Which means they must have a lot of leaks. Surely this isn’t how it should work? I’ve had a Credit Card for over 40 years, including this one for over 10, and this isn’t normal. Please suggest a solution, as all I’ve got at the moment is ‘give up and close the account’.