Unauthorized Deductions

Dial Direct repeatedly debits my bank account on the incorrect dates even though my debit order mandate clearly states that they should debit on the 25th of each month. This is resulting in my credit profile being negatively affected. If this continues, I will cancel my policy with them and join a different insurance company. I had the same issue with them when I had life cover in 2016 and ended up cancelling that policy as well. Secondly, there's a debit order of R59,60 that went off my account that I did not authorize - is this not *****???