And like firefox relay and ironvest:

https://ironvest.com/masked-mobile-phone/
https://support.mozilla.org/en-US/kb/mask-your-phone-number-relay-phone-masking

I'm just commenting to give a little activity to the thread. But, I personally think this is a Huge opportunity for Proton, it likely will not be hard to convince people what the evil corps are doing with there "Mobile Wallet" data, but the convince of a Mobile Wallet is just too huge. Having an option for Mobile wallets would be awesome!

I'd go as far to suggest, I'd be willing to pay into a separate plan for this product. Tho, I'm not sure where the rest of the community stands on this.

THIS.
I absolutely hate making transactions online with paypal and other providers
I want some one I can trust

This would be really awesome and would definitely encourage me to get a full Proton Unlimited plan

A service where you can add your card info and pay with an "alias" card, like "privacy.com". Available for more than just the US

phone number masking would be a game changer

We need this

Add the ability to hide credit card information when checking out on websites and use a masked credit card number. Similar to privacy.com but allow for international usage. It would also be great to utilize the nfc feature on phones and use it for in store purchases.
For the phone number, it would be good to have masked phone numbers like Firefox relay.

Something like privacy.com but included in SimpleLogin or simply the Proton ecosystem would be so convenient to have. Privacy.com is available only in the USA and I believe a product like this would greatly improve the security and privacy of online purchases.