Sheryl, I've had lots of luck removing stains from many vinyl dolls ...
I just use plentiful/repeatedly applied applications of generic acne cream (with 10 percent benzoyl peroxide) until the spots/blemishes/etc. vacate the premises. In some cases, it's taken quite a bit of patience -- and several months to work -- but I'm stubborn like that.
Good luck getting your situation resolved one way or another!