FNB BAD SERVICE AND CISTOMER SERVICE

So FNB sent me an sms in the morning(while I was at work) telling me that my account is frozen and I can't access my funds. Now I am ****ed because they never gave me a grace period or let me know at list one month advance (like what other banks do or like how they do it with other customers) that they need my FICA documents for updating my details. I am getting paid tomorrow and going for a holiday, now I have to cancel my plans so I can go to their branch in the morning so I can update my account. What ****es me off more is, I went to Bloed mall branch in Pretoria to update my account using the address on my payslip now they tell me they can't accept it, I have to go to another bank to ask for a bank statement so I can be helped! and their consultants have attitude too!!!!!!