Lost title deeds after paying the bond for 22 years.

I sold my property and the buyer was approved her loan in February. Around April I was then told that FNB lost my title deeds. That delayed the process and I had to pay twice m****cipality to get clearance certificate. Only on the 18th June the lodgement took place with the deeds office. The house got registered on the 15th July. I contacted FNB and they told me to wait until the house is registered then they will refund me for the delay they cost. Now they're blaming the deeds office and refused for the costs I accumulated due to them. Dishonest bank.