Blocked account

FNB has always been THEE bank however my last experience with them has been appalling.I have an EASY ZERO ACCOUNT with them that i transfer money to for my transactions as its more convenient. So on the 27th October an Omphile Kgwadi decided to block the account without notifying me.I tried to pour petrol and the card declined and i thought it was the monthly limit.So i waed for the 1st and still the card declined.I then tried to purchase airtime and it referred me to the branch.I got to the branch on the 3rd and nobody could assist me they instead sent me to the phone where i sat for an hour being sent from pillar to post. A lady eventually gave me a case number and the investigators name and contact number Omphile Kgwadi and i have BEEN struggling to get a hold of her since.Im sitting penniless because this bank has put a hold on my account and nobody bothered to notify me.