FNB - no service

On 18 November 2019, i have notified FNB that my cheque account is no longer reflecting on my Online Banking / FNB app therefor i cannot transact out of my account. They have advised me that they are escalating, on 19 November they advised they have reported to Digital banking and it would be sorted withing 24 - 48 hours, on 22 November still no luck and today is the 25th when my salary is getting paid in and STILL NO LUCK OF THEM SORTING THIS OUT.