No answer and triple debit

Firstly, you people decided to debit me three times and when I called in on Monday spoke to a Megan, she said they are aware of the problem and the finance department doesn't work on weekends and that I will have my money back in my account by yesterday. I asked for a reference number and she said I can use her name and the date of the call. I phoned again now 4 times as the money is not reflecting on my account. The call got cut all 4 times after it rings. You are totally pathetic when it comes to customer service. Please sort your **** out and refund my money!