Terrible service.

Tell me why this month my wife had beed double debited after she had already paid her installment on the 21st only to have a debit order taken off on the 30th which she did NOT authorize!? Only to try for 3 days to find an answer as to why she was double debited where she has been met with consultants who are less than helpful, rude, talk over her, oh and when they don't know the answer to her questions or even when they get annoyed because she has asked the same question 4 times because she still doesn't have an answer they hang up on her! 3 days to get absolutely nothing accomplished and to be met with incompetence every single time we try.