Pathetic service

My husband bought a car( 2019 Amarok 3.0 TDI H-LINE + 4MOT A/T) in 2019 July. He sadly passed away in August 2021 after 2 years of paying the car,I then continued with the monthly instalments since then until now because I was told my late husband didn't have life insurance for the car.Last month (11 May 2022)they sent someone at my house who identified himself as Oelof Van Wyk (kredcorgroup) to tell me that the bank wants me to settle the car within 14 days, the settlement letter was emailed to me on the 12th May with an amount of R612 144.06, who waIks around with that kind of money? I explain to the guy that I am still waiting for my husband's pension payout only then will I be able to settle the car.I asked him if he was aware that I have been paying the monthly instalments and he told me he was aware but now I can't continue as the car was not registered under my name.He has been harassing me with calls and emails telling me to Surender the car because the bank cannot wait for the payment indefinitely, even when I try to be decent by updating them on the process of the pension payout, he doesn't seem to care about anything except me surrendering the car back to Wesbank. This is the worst treatment I expect from such a "Big" bank, very unprofessional and no sympathy whatsoever, pathetic service,This would make sense if the car was in arrears, I even pay more that the instalment amount.I suspect they already have a buyer for it at the auction that is why they are insisting that I must surrender it and that they will keep it for me for 3 months. I will never advice any of my friends, relatives even enemies to use that bank.I am even thinking of cancelling all my accounts I have with FNB.