Poor service! Finance/accounts department!!

I paid my account 3 months in advance, but they keep debiting my account, when I asked why? They say my account shows that the money was reversed back into my account, sent them my bank statements to prove to them that no money was returned into my account. They promised to return calls but they never do, the finance depaRtment hangs up the phone on your ear when they do not have answers

Their supervisor promised me that she would look into my query and would stop any debits going off my account until it’s resolved but nothing is happening instead they just keep debiting. I regret using their services. Their administration is horrible.I have been calling and emailing them since December but I still have not gotten any assistance from them I want to know where the money I paid reversed too! I am so frustrated, poor poor service!!!!