Ill informed operators bugging clients.

I was behind on my home loan due to Covid lockdown in 2020. I made arrangements for repayment, which FNB and myself agreed upon in writing. The agreement ends on 1 March 2022. I have been honouring those payments ever since, yet, FNB harasses me constantly telling me my account is in arrears. It seems that the operators phoning me are not aware of the payment arrangement. Any reasonable person would think that this information shows on the system before the phone call is made to the client. Can FNB please stop phoning me regarding this matter?