Couldn't even create an account

I couldn't even use the bank, their app broke before I could create an account and their support staff couldn't figure out how to fix it, I was then asked to manually complete the process in which I sent through a pdf proof of address, the consultant then opened the pdf and read me the address, which I confirmed it was accessable. I got a follow up phone call a couple of days later saying that the file type provided wasn't accessable because it wasn't in an openable format. So pdf isn't a industry standard ????

With that level of instability I would hate to know what goes on in the background.