Setting a trap for consumer

I sent out an email earlier on in the morning explaining my salary switch and change of account to Wonga. I also went to an extent of attaching new account details in the email. I merely requested that my banking details be changed by the Wonga admin team in time before their loan has to be deducted which is tomorrow the 26th. I didn't ask for any extension merely a change in accounts, still using the same bank. Up until now there has been no response whatsoever. I try by all means keep my credit record clean but now Wonga wants to list me as a bad payer by not assisting me here. That debit order will go off and there won't be money yet in the old account. <br> <br> I find this very unfair!!