Billed on the incorrect date

I'd like to say I am rather disappointed in the service from Miway Insurance lately, 3 months ago my account was debited before the agreed debit date which resulted in the transaction being unsuccessful, I called in and they apologized and I was advised it was an error and this will be resolved, to my surprise again this month the same thing happened, my debit order was unpaid due to the fact that i was debit on the incorrect date, seems like this will be an ongoing issue, this is a bad reflection on my credit record. I have NEVER missed a premium on my policy and I am not about to start now. I am really considering cancelling my policy and taking up insurance with another company that can actually cater for my needs as it seems that Miway cannot do this for me. I really thought being with Miway was the best choice I made but I am seriously beginning to doubt my decision.