if its t250 then its like 177mg/ml of test doesnt matter which kind there are slow and fast acting so space the shot 2mls week every 4 days, should be sufficient.
tornel is cheap and very underdosed but its cheap price should be a reasonable trade off.
also i dont trust them IMO, because they dont have great sterility either.
the b12 can be orally consumed bro, u dont have to inject it, it will work the same take it an hour before workouts, for the best results.
good luck and like it was mentioned if you do any other go with QV, fort dodge, IP or another proven company with good quality and potency.