Poor service

Good day, I hope this message reaches highest authorities in Nedbank Home loans. I have a Nedbank home loans with you guys but every month you debiting me twice I blocked one debit order but still, when I call your call centre your unprofessional agents are not even willing to assist me, I always need to fight for my money. This is an Inconvenient to me, yesterday one of agent even dropped a call on me. I regret taking policy with you guys.