Discovery bank shambles

It all started with Discovery card a year ago first managed by fnb and now discovery bank. ********** transactions ignored and even after I went to the ombudsman and they opened the case and a commitment from Discovery to refund us - in July 2020, I still haven't been refunded, I'm still be charged interest and I am still bot getting a response from Discoveru bank. Last week i even spoke to a manager to get it resolved and heard nothing since except getting a call from their collection department asking for money they say we owe them. They are a disgrace to the service of banking. Fnb Tells us to contact discovery bank, discovery bank tells us to contact fnb. Weve got proof from fnb that discovery bank was paid the money to refund us, yet weve not been paid. So far they have no intention of paying us all the interest weve been charged and paid to them since Sept 2019. Shocking.