Having a bad user experience with FNB

I'm having a terrible experience with FNB. First it took 2 weeks to verify my FICA documents (I had to write a review first before I could get help) now I'm having issues with internet banking. I have activated the card at the ATM and I have also activated online banking however I can't seem to login. I called in on the 22nd of June and a guy assisted me, we went through the process step by step. The app requires me to enter my card details and pin but your system keeps rejecting this saying "your request cannot be processed, please enter a valid card and PIN number, you will be blocked after 2 attempts". I've been entering the correct details and we tried again about 4 times and I kept getting the same error message. The consultant then said to me I should attempt again in 48 hours, which I did but it's still not working till today. I keep getting the same error message although the details entered are correct. Can someone please assist me, I've had this account for a while now but constantly have issues and I can't use the account.