Card ***** Division Not Answering Calls

I have a Discovery credit card and by error entered my OTP incorrectly. Immediately my card was blocked (note this was early December 2017). I was given the FNB card division ***** number ********** by Discovery Card saying that they can assist me with unblocking. Well I have been phoning this number since December 2017 and everytime I have held on for more than 15minutes but NO answer and then get cut off.

This is soooo frustrating, especially from ***** Division. What happens if I had to report *****, it will have to wait 4 weeks because your division doesn't answer their phones? Also I cannot unblock the card on the FNB app as indicated on your electronic message as you hold on for ***** division, seems like the FNB app doesn't cater for this option for Discovery Card holders.

All I want is my card unblocked so that I may purchase online but I cannot do that as I cannot get through to your division!! First time ever I've seen this from any bank