Never, Ever EVA use Bitpay!!!
Firstly, since I'm using a wallet not on their front page (the 'recommended' ones), I used the 'WalletConnect' function - which failed badly! I then contacted support showing the relevant screenshots, and "Carl" did nothing but copy links to their "how to" section - and obviously didn't bother to even read my email. I also note his reply had flagged my case as 'solved'. How can you say it's solved when you don't get feedback from the customer to say it is??
After going through crap, I did something slightly different to connect my wallet, and somehow that worked ok.
Sceondly, however now, I get a message saying I underpaid! Given I had paid $197.00 USD worth of BCH (typing into the USD line, not using the BCH line), for a $197.00 invoice, something is seriously wrong here!!! (yes, I paid the amount exactly as written!)
The website stated "This invoice was underpaid and has expired. Please request a refund by providing a wallet address where you'd like to receive the refund." The email said I could claim my refund - but lo and behold, they're refusing to do so unless I provide personally sensitive information to a third party, who will use facial recognition technology to ensure that, once they're hacked, I'll lose my life and funds! (yes, I am vehemently against the Kill Your Customer laws being put in place - farrrrr too few oversight mechanisms and guarantees!)
DO NOT USE BITPAY!!!!!
Given the number of bad reviews on this site, I doubt they'll care about getting yet another one - because $200 is worth that much to them!