The best way to sum it up is with what @amal just posted in another thread…
Basically, its not up to you to choose novelty over security. I get the impulse, but the payment networks own the keys to the kingdom and they don’t accept ‘novelty’ in place of their cryptographic security.
VivoKey Apex is looking to be the first implant that will actually support payment eventually, but its still a little while off.
There are also the options that @Devilclarke mentioned. DT can convert a micro bank card to an implant if you can get one. It’s a custom service, single purpose implant, that will still have an expiry date when it becomes useless. And if the bank finds out about it they might cancel it on the spot.