Do not use Google Wallet in the Messages app.
It took me an hour to get to the bottom of this. I’m a tech-savvy person, and this is utter madness. I got an email from my bank that $500 had been transferred out, but there was no transaction history in Google Wallet, and when I contacted the recipient (luckily a friendly client whom I had requested money from, NOT sent money to) they said they never received any notification or accepted any payments from me. So basically Google took money out of my account without my authorization, and it will take TWO DAYS for the transfer to reverse. Google couldn’t even provide me with a confirmation of the reversal, and neither could my bank. So I just have to trust the $500 appears back in my bank account within two days. I have no words for my frustration.
folditinhalf about Google Pay, v21.5.23