I want those funds released

I have been coming to the branch from last year to release funds that were transferred from my mother's deceased estate FNB Account. They asked for proof of payment and I comp**** and brought the relevant documents to the branch on the 18th of December to be forwarded... After 7 days, I went to the branch to do a follow up and they then said I should wait 14 business days of which they ended on the 10th of January. I went to the branch today and still no response or the funds to be released. I waited for over 45 mins for the phone to be picked up at forensics department. The service is pathetic. The account is on hold for another reason when the deceased funds were released to my account but still the funds are not released. This is frustrating.