No more customer service

I was with my mother in law at capitec Bank in silverwater Crossing. She needs to pay bills but blocked her app on her phone. Nothing wants to work. She is 85 years old and on crutches she only wanted to reactivate the app. When we got to the door 12:55 we were advised that they are offline but there were clients being served inside. We asked the branch manager nicely and she just said no without hesitation. There was one gentleman who wanted to help and said they are not offline but the manager insisted we must come back on Monday. She was so rude. This was the most traumatizing experience I ever encountered with a company that is so big on client service. It takes 5 minutes to reactivate the app. And the branch was not closed it only closes at 13:00 we were on time. How can I trust a company with my money? I am so dissapointed. ????