Desperate customer

I am beyond desperate with FNB, I have had ***** on my account and am unable to resolve a full refund. It is month end and I have been trying since 8th August to finalise the refund. As the money was ****** from a credit facility it attracts interest charges and I have been desperately trying to have it confirmed that these charges will be reversed. The charges have all gone off my account today!!! I have emailed *** three times and although I receive an automated response to say it is HIGH PRIORITY and someone will contact me, I am yet to have anyone contact me. This bank is as bad as the ******* that stole from me, as the bank is now *****ing from me. Please close your account if you bank at FNB. The customer service is non existent.