I know frustrating it may be, but - if Mrs Britney took care of the report, I am pretty sure she will eventually fix that. I don’t know another helpdesk assistant who actually THANKS YOU when you report the pro bundles for M5 and V5 had gone mad and display as freebies. Give her time - in this case, a lot, because you, poor soul, definitely have crossed ways with Murphy’s Law (the weather, approaching Christmas, weekend, loss of the order number). I usually had to wait a week, but I always got a reply. In fact, when I got the first message (not counting that “We’ll get back to you shortly” thing), the case was followed with day-to-day accuracy.
In the meantime, think about other proofs that you paid for V3 stuff. I personally make printscreens from every order I make and store them in a special folder, which is backed-up from time to time. Do you have similar proofs? Maybe a confirmation e-mail? Printscreens of your library when you had V3 in there? Try to provide the helpdesk with as many proofs as possible and be patient. That’s all you can do (and think positively, fingers crossed for you).