Erratic Debits - Terrible service

Miway. I honestly do not know how many times I need to phone you guys to assist with erratic debit orders on my account. Firstly I phoned in to amend my policy as I was working from home and I moved. I was assisted by a very nice Katlego, and was assured that my premium is now lowered and I was debited that day. I then got a notification that another amount has been deducted by Miway, accept this time it was about R300 more than what was on my newly sent policy. I then reversed the debit and was debited with the same amount the end of that month. I left it as I thought that was my pro rata amount was going off. The beginning of this month another debit went off for the higher amount. I reversed it AGAIN!! Then when I phoned last week to ask what was going on, I was assured that the extra 265 will be credited into my account. Guess what, it was DEBITED from my account. I received a new policy again and my address that appears on there is not even mine. Please can someone contact me urgently. I would like to cancel my policy.