Thank you guys very much for your responses. As I expected, Sneakypee does not seem very trustworthy website. Model, that I am looking for is Sindy Strutt- twitter.com/sindy_strutt
I have seen few of her videos and some screenshots from videos like this attached with sneakypee copyright inside. I looked for these videos on many other sites, but without result and I think, the only way to watch her videos is sneakypee.
As you mentioned - prepaid cards, I never tried this and I do not have any experience. Also I dont know, if there is such possibility in my country.