Shit does happen and yes its only one vial, i completely agree with you but this exact test was demanded - theres a screenshot of the customer wanting it done in May..
SCS has just shown the test he got done, demanded by a customer and its come back as reta and on point? What else does he have to do?
Pretty sure there is an apology that should be heading SCS's way for potentially tarnishing his brand name.
Customer may still have a gripe with how it was handled and its up to him if he wants to apologise or not for that but I think manning up, having some humble pie and apologising regarding the reta being completely bunk but more so, trying to bring other people into the argument against SCS.