Unhappy Nedbank customer

I'm very furious an disappointed how Nedbank couldn't handle the 3 months holiday relief communications..last month was suppose to be my last month of holiday relief ,but they've deducted, I called them, they've reversed the money back to my account . shockingly this month they did 2 deductions for last month an this month. When I'm calling them, they said holiday relief ended end of June without communicating with me even worse now their telling me they can't reverse the money back or I will be in erase if they do reverse, unless I can come up with a solution of how I'm going to pay back for this month maybe increase my installment to recover the rever*****t of this month. What confused me even more is the fact that they've been send me letters of apologies for deducting last month that says they will start deducting next month 2020 _09_20, Last month I didn't pay rent thinking will pay twice this month or more to recover. I also have other comments..soo now Nedbank deducted twice which its gonna be 3 steps back financially for me I'm soo soo disappointed ...