https://payments.wikimedia.org/index.php?title=Special:GravyGateway&appeal=JimmyQuote&country=US&currency=USD&payment_method=cc&recurring=0&gateway=gravy&uselang=en&amount=2.75&wmf_medium=spontaneous&wmf_campaign=spontaneous&wmf_source=fr-redir.default%7Edefault%7Edefault%7Edefault%7Econtrol.cc&wmf_key=vw_1210%7Evh_248%7EotherAmt_0%7Etime_2

https://payments.wikimedia.org/index.php?title=Special:GravyGateway&appeal=JimmyQuote&country=BR&currency=BRL&payment_method=cash&recurring=0&gateway=gravy&uselang=en&amount=17&opt_in=0&wmf_medium=spontaneous&wmf_campaign=spontaneous&wmf_source=fr-redir.default~default~default~default~control.cash.pix&wmf_key=vw_1510~vh_791~otherAmt_0~validateError_1~ptf_1~time_14&referrer=donate.wikimedia.org%2Fw%2Findex.php%3Ftitle%3DSpecial%3ALandingPage%26country%3DUS%26uselang%3Den%26wmf_medium%3Dspontaneous%26wmf_source%3Dfr-redir%26wmf_campaign%3Dspontaneous
fix the issue for payment sub method not able to tab-able.

18 issues:
15: Ensure <img> elements have alternative text or a role of none or presentation
2: Ensure the autocomplete attribute is correct and suitable for the form field (first & last name)
1: Ensure <dl> elements are structured correctly
used report from axeDev tool which is a chrome extension

a lot other payment gateway or methods have the problem due to the overall form, like image lock and the dl element structure.