wrongfull debit since sign

Good day

i sign up with old mutual in august 2017 for both an RA as well as the green light policy the financial planner assured me that the debit order would run on the 1st of every month however this was never the case i had queried this with old mutual numerous times as to why they eith debit me on the 5th of every month or sometimes even later December i had call to inform them that i will not be making payment however the debit order ran yet again only to find that in the account there was not any funds available today i received and email TELLING not ASKING me that they will debit my account twice no one both no one has bothered calling me ever even after i had raised the issue with the debit order date i think it would be better they give my money back and i take my business else where