No service to even rate

During the national lockdown I has requested a payment holiday from Wesbank, they sent through an addendum which stated that payment would resume after 3 months and that the 3 months would be added onto the end of the contract, my contract was due to in October 2024 and the new ending date was January 2025, which I has agreed to, now they send me a debit request for almost double the monthly installment, despite emails and phone calls they don't even bother in responding, no service to even comment on. To be honest there should be minus stars.