A previous favorite of mine was able to accept credit cards for appointments. This was very ideal for me to keep the expenses hidden from the S.O. at home. Can anyone recommend a massage or even full service provider who is able to accept these forms of donation? Thank you!

I accept Credit Cards!

How does using a credit card hide the expense?  Even if she doesn't see the credit card statements, isn't she going to wonder why the bill is so high?

Do your CC transaction via Venmo (they take but CC's, Debitcards) it's an app like paypal, it's simple & you don't have to exchange your CC info with providers & it's only a 3% with CC's

The current release of Venmo's payment product for merchants is only available for certain business models. Cases that are not yet supported include:
Selling goods or services in person
Selling only over the web/mobile web
Selling only within the Venmo app
Facilitating peer-to-peer transactions between two Venmo users
Non-profit donations

If discussed in advance and another Provider has done this with you without issues.  

I've never had any problems with Venmo & I've gotten super large amounts etc..,

Are you using a business name?  
I wanted to use it but don't want to use my FB to sign up.