I stopped using my monzo card nearly a year ago. My contactless payments NEVER worked. The app notified me to use chip and pin when failed, but even this failed most of the time.
I have since been sent a new card. And the issue is still there. However, the contactless version on my google wallet works fine (so far.)
I want to use the monzo card as my primary spending account to help me be more aware of my outgoings. But even when i tried to use it online for a one off payment on the playstation store, the app delivered me a Ā£0.00 payment for āapprovalā and it went nowhere. Never approved, never deducted.
This proves thereās nothing wrong with your account. It also proves the card hasnāt been (accidentally) frozen in the Monzo app. If the card has been frozen, you canāt use Google wallet version of the card to pay for anything.
Did you get chance to approve it in the app? If you miss the immediate pop-up, then thereās usually an entry placed in the transaction feed which you can tap on to approve a transaction - but approvals disappear quickly for obvious reasons. Itās also a little strange that you were charged āĀ£0.00ā - usually an āActive card checkā is done first (and Active card checks are also shown in the transaction feed)
It sounds like it needs to be activated to work with contactless, by using it to pay for something using Chip & Pin first. Once Chip & Pin has worked, you can use it for contactless payments up to the limits shown in your account details.
Also, check your custom contactless amounts in-app havenāt been set to Ā£0 (or lower than the amounts youāve been trying to use the card contactless to pay for) -'Account ā Manage ā scroll down & tap on āCustomise contactless limitsā ā adjust as required