Why do I have to be debited twice in less than 10days

I have never been so emotionally abused by a service provider. In this covid-19 financial stress they decided to debit my account twice in less than 10days for my Retirement Annuity policy. It's not like I am owing them and I never requested that my account be debited every 10days. I do not know what Old Mutual is trying to prove to me but we are enough with Old Mutual. The problem is, it is not for the first time I complain about Old Mutual.