I sent in 2 ml, I wasn't going to waste 10ml to just test it. But I would have a pretty hard time faking 100mg/ml of Mast E. I mean no one brews 100mg/ml of Mast E. 03500 is the batch number for all of their Domestic Primo apparently (at least my 14 vials), so that's what I labeled it.
I followed up with Jano and they replied (see screen shot attached).
USP reimbursed me for the vials I bought, but I won't use the Test C (Even though it tested fine) or the Mast E (I bought from overseas after I sent I the Primo and Test C in) so I am still out several hundred dollars.
I have already ordered and received Pharmaqo Primo and Mast E from Domestic-Supply.