Well. Its been a month so I'm not sure if you'll see this. Medhelp should send an email notification.
Unfortunately, there's not much that can be done though. More aggressive medications at your age can kill you. In terms of working in the lab you are correct, you need to have a PVC to ablate. This is due to the necessity of the equipment in the lab to have at least 1 PVC to compare to pacing in order to ensure the operator is burning the correct location.
It is recommended when you get evaluated for PVCs that you follow whatever routine you normally follow. Typically for an ablation however you would withhold medications, food and drink. This creates different conditions. It is possible that one of your medications is pro-arrhythmic for the PVCs, or that perhaps something you eat or drink is a trigger. Therefore potentially taking all your medications prior to the procedure may allow the clinical PVC to show itself.
Food unfortunately still has to be withheld but a little clear fluid is often ok. The risk associated with food or drink involves the anesthesia creating nausea/ vomiting and patients choking on their breakfast. I wouldn't be surprised if there was a provider out there that allowed a little bit of *black* coffee if that's what brings out a rhythm. (Note: this would be very uncommon. Black coffee actually suppresses PVC's in most cases but there's always that rare outlier)
It may also be of benefit to simply wait a little bit longer before calling the case, collect the PVC before administering any anesthesia/sedation (If they aren't already doing this). They could also try some medication infusion if they wanted to get really aggressive. Start with maybe a little adenosine (If you're stable enough to tolerate it) and then try a little isuprel and see what they can shake up.
All of these ideas would strictly apply in a situation in which you desperately needed the PVC's to go away and the providers was exceptionally aggressive and willing to take on a bit more liability. None of the above appears to be the case here.