i'm guessing the email saying "what's up?" would have to come from your RL id, if that's associated with the payment. your RL id could be a bystander! just watching this convo! totally unrelated!

or, maybe, wait till the election season starts; surely they will then be inundated with lots of people saying "i thought i was eligible to vote, but..." and any chance of tracing one version of you to the other would be lost.

good luck!