Debit order mess up

On the 28th August I changed my debit order date to the 2nd of each month. This was after I was already debited on the 26th August. I asked the person assisting me, which month will the new date start and she said it would begin only in October. I was then debited on the 2nd of September. I called in again and the guy I spoke to told me they were wrong and I should not have been debited but instead of reversing it, he told me I would not be debited in October.... lo and behold.... I was debited on 2nd October!

All I want is my money back. I was debited 3 times in a space of 2 months. Don't promise me that you will not debit me next month because you don't know how to do that...

I'll be waiting for my money........