Basically every provider seems to have a similar level of customer support.

For banking in particular, I already bank with a half-dozen banks because they have different products/services that are optimal for some specific use cases (i.e. I min-max my bank accounts, credit cards, and investment accounts.) — however, customer support seems to be universally bad.

If you're curious about why I'm using that particular bank, I'm forced to use them for some investment accounts because my employer matching benefits uses them. For the credit card, they're one of the few banks that offer proper co-applicants (rather than just supplemental users) which really works best for the way my wife and I have our finances organized. And flights in my city are dominated by a single airline where the only way to avoid paying for baggage is to get the co-branded credit card from this bank.

Cancelling a long term credit car can profoundly effect ones credit score sadly.