I had a life cover with Old Mutual

I had a life cover with Old Mutual. In January there was a change over on their system which resulted in an error in my premiums from R774 to R5739. I reversed the transaction as it was going to negatively effect my other debit orders. I immediately went into the bank when it was deducted and informed them that I will be reversing the transaction and also logged a complaint with them. Since then my policy was canceled and I have been in and out of the old mutual office and have tried all avenues. They have acknowledged that there was an error but to date my policy has not been reinstated.