I misremembered, it wasn't during an election it was actually when we heard about the initial voting about chatcontrol, or one of the encryption breaking propsals that preceded it.

Either way, yes I was able to just call their office numbers listed on their websites and get through. I also in some cases got personal replies to my e-mails from individual MEPs.

If you call their office most likely someone else will answer the phone but in some cases, if you're lucky, you can just ask if the MEP is available.

MEPs are surprisingly accessible, because the public and journalists hardly ever bother with them. Journalists tend to focus on domestic political theatre rather than the boring details of actual policy.