Mondo debits account incorrectly and doesn't return money

I was contacted telephonically via Mondo and given a contract which stipulated how much data I would be given. Upon receiving the contract it was much less and I asked for a refund and to cancel. It was deemed in my favour, but thereafter 2 months later they took out R660+ from my account which was 4 x or more than a months subscription to put it in perspective. I complained, it was deemed in my favour that I receive the money incorrectly taken out from my account. They incorrectly sent the money to someone else's account with my name as the description and its been 8 months back and forth via emails and they have not paid me my money.