Standard Bank below standards.

To whom ever this may concern:

I opened a Standard Bank MyMo account about two weeks ago on the app and then went to go fetch my card (and with the Covid-19 pandemic it isn't at all easy). I then deposited money from my Nedbank account to the MyMo account leaving it for emergencies. But today I decided to get groceries just to be surprised by a list of declining transactions at the store, which ought to be strange cause I ave money on the account. Decided to rather then withdraw money at the atm and got back a slip saying its an error 0004 and I was forced to leave the store empty handed due to Standard Bank's incompetence. Opening this account has thus far ben the worst decision I have ever made, I hope that by doing this the problem can be resolved.