Unfairness

After contacting the FICA department on Tuesday 18 January and updated all my details FNB confirmed via email that very same day everything is in order, however yesterday(19 January 2022) when I went to Pick n Pay to buy some stuff upon paying my account was frozen, I contacted the FICA department this morning again to ask what the problem is and the agent again said everything is fine there is no problem with my details, but why froze my account then!?? And now I need to hear it can take up to 2 days for my account to be active again!! 2 days that I can't pay or buy anything!! Totally unfair and unprofessional If this is FNB's attitude towards me then I will close my account and move to another bank where they actually care about clients