FNB uses underhanded tactics to take away my home

During lockdown I reached out to FNB for assistance with my homeloan payments, FNB refused to assist me stating that my homeloan was paid in excess. Suddenly without warning FNB stopped my homeloan debit orders and the allocation of ebuck points along with it. Fortunately I realised this a month later and transferred the money into my homeloan account to avoid arrears and additional interest. I then sent a query to FNB homeloans but got no response. It's been a year since, FNB would have gladly repossessed my home had I not noticed their under handed tactic of cancelling my homeloan debit order and forfeiting my ebucks points. One year later, despite numerous requests FNB still hasn’t re-instated my homeloan debit order and ebucks allocation and neither have they provided an explanation as to why they cancelled my debit order without my authorisation.