Excess Bond Money not paid over to client

My house was sold and the lawyers transferred too much money to my bond account on 29 April 2021. On 3 May the debit order for the bond also went off my current account. When I phoned the bond department on 3 May the lady told me that it would take 7 working days for the money to reflect on my current account. By yesterday the money was not paid in. When I phoned yesterday they said the bond was only cancelled yesterday and that she is going to send an email which will be attended to in 48 hours and then it would take another 7 days before it reflects on my current account.

I feel it is unfair that the money was not paid over when it was cleared after 7 days. What happens to the interest on the amount? FNB has become very slack and obviously someone did not do their job. The Reference Number I received yesterday: RB***