Poor service from a bank that claims to be tech savvy.

I have been trying to apply for an increase on my credit card account via the FNB banking app since the 29th July 2024.After completing the required fields, the system says it is unable to assist due to a technical issue and someone from the bank will call me.Two days later I'm still waiting and I don't know who to contact to fulfill the request. Their secure chat tells me they have escalated the issue to the relevant department. Attempting to apply for an increase in facility from FNB you need a chainsaw to cut through the bureaucracy and the red tape. Their technology doesn't serve the interests of their clients yet they pride themselves as techno savvy. I'm at my wits end and perhaps I need to find a bank that will provide me with old fashioned service standards.