I want my money back

I don't recommend anyone to be still taking contracts with vodacom. I have been handed over to MBD, told to make payment because the last payment must be paid by eft or at the store. I made calls wanting clarity about that and guess WHAT? After I made an eft payment today I wake up and the debit order went through. This means I have paid twice. I want my money and get your act together clearly there is no proper procedure followed. I want my money back