testosterone cypionate vial

So I was on the phone today with cvs about my testosterone prescription. And they said they can’t fill a 10ml vile for a 90 day supply because after 28 days it goes bad. So they have to use 1 ML vials. I have never heard of test going bad after 28 days. The old pharmacy I use to get it from was...

Are any you guys getting this from mail order , specifically empower or APS. If so what are you paying. My local cvs is not taking the Goodrx coupon and Walgreens will only do 1ml vials.