Unauthorised Debit Order

I am very dissapointed in Getbucks. After arrangements were made to debit my account on 19 Dec, the debit order went of on the 14th of Dec. That money was needed to pay someone else, which I now cannot do. I have phoned Customer Services 5x since yesterday afternoon and everytime I get the same answer: I will be reimbursed before the close of business. Till now, no money!!!!! This is unacceptable and very unprofessional. I have never had a problem with Getbucks till now.