You can use any VCC to make manual payments into Google Ads, if the manual payment option is available.
As per official Google Ads documentation over https://support.google.com/google-ads/answer/2375433?sjid=7073398864489485268-AP#zippy=%2Ccredit-cards-and-debit-cards, under "Make a payment with a one-time use credit card", it mentions "In addition to regular credit cards, you can also use a one-time use credit card (also known as virtual credit card). It's commonly used as an alternative to physical credit cards when making online payments. Google Ads accepts these credit cards as long as they have a Visa or MasterCard logo".
Automatic payments, on the other hand is a different walk in a different park and it involves a different ball game too.
As many members have also attested, there are certain things (not all, but certain things), which people do not usually share openly and one of them is which cards or VCCs they use for automatic payments (threshold accounts) for Google Ads. The reason why people do not usually share these openly, is because especially nowadays, people have realized that they no longer prefer to https://idioms.thefreedictionary.com/shoot+oneself+in+the+foot, due to Google Ads patching up certain aspects, on a regular basis.
I humbly and sincerely apologize that I am unable to advice you about cards or VCCs for automatic payments (threshold accounts) for Google Ads.
Additionally, I also have a humble request to you. When you find and source your working cards for Google Ads threshold accounts, it is ideally advisable for you too, not to share them openly, for your benefit. Nonetheless, those who want to openly share such information, are always most welcome to do so. The moment they do so, those card bins will get patched, as Google (Google Ads) is omnipresent everywhere.