Deducted from account with no permission

nedbank deducted for a loan from my FNB account and it was successful, they then went and deducted the same money from my nedbank account, which i had not given any permission to debit from and they had already received their payment.<br> <br> I have called in for a week and they first said they they will refund my money wiithin 48 hours and then later in the the week said 7 days. as a result of this my dstv account has been cancelled and I have to pay additional charges to reactivate.<br> <br> I am 100% sure that there is a regulation that prohibits a bank from debiting from an account which they have not be authorised to debit from and would like to know where should i log this. <br> This is absolutely unacceptable and who will compensate me for the dstv charges that i have incurred due to their breach. their call centre is completely confused and dont' have standards to follow. why must i wait for my own money.<br> <br>