When's the last time you can recall a source selling fake anavar? Janoshik has literally done 1000s of blind tests and got them right. Everyone who has been around knows the history between him and mands but he's proven himself to be a valuable asset to this community. And you'd rather go with a source with a solid reputation over having it tested? You're a special kind of stupid. What kind of feels do you get from testosterone? You're a fucking tool and the last motherfucker on this board that anyone should take seriously.
To the op, yes yms is a shit source that is overpriced. However, I haven't heard of them sending out fake shit. Get in touch with janoshik or lab4tox and send in a sample to know for sure as it's not worth fucking around with your wife's health.
Also, whoever recommended a home test is not giving you good info. Pay to have it tested or as has been mentioned, get it prescribed by a doctor.