Did you change bank as well or just the account?

My wife took out a payday loan with cap finance one in jan for £150 using my account. Mid way through feb, £58.50 was taken followed by a text asking if she wanted a top up of £140 which she took! I wasn't happy and told her to decline all further offers. At the end of feb, another text arrived asking if she wished to defer for a month and pay full amount in March, which she did! I told her that in March the full amount was to be payed and no more deferrals. Lo and behold, a top up offer of £75 was offered and this time she didn't reply. Also another deferral text, saying we could pay only the interest (£135.92), instead of the full amount. We didn't acknowledge this either and at the end of march, the full amount of £484.42 was taken. Now I'm hoping this is it, but I'm keeping a very close eye on things. First sign of trouble , and I'll pay off my other loan (with my bank) then close the account!!