ABSA NOT RESPONDING TO FICA EMAILS

We were advised to FICA with our bank. We went into the bank on Monday 7th August and told that we needed to email them to do the FICA - this was no longer performed in the bank. I emailed them on Monday, nothing done to date. Emailed them again yesterday and still nothing done. I requested a received and read receipt but these emails have not even been read. One of the accounts that needed to be FICA'd was our home loan account where we have an access account. If the FICA has not been done by 31st August then we wont be able to access our savings. What more can I do to request be done