Blocked without reason

I’m not happy with African bank. My card is on hold and I don’t know why. I have been calling since Sunday and still no help as I’m supposed to wait for a call. It doesn’t make sense for my account to be on hold while I’m the one who sends myself money. This is unacceptable. I cannot buy food or anything and still no valid reason as to why I’m waiting. 5 days without knowing why my card is on hold ? I wouldn’t recommend this bank to anyone.