I signed up for Lobster Face on 23rd, even got bitten a few times but there's no sign of me getting infected. Is the longer wait time normal for older infections or should I file a ticket?

If you go back to the VIP page, what does it say?

Thanks for participating in the Volunteer Infection Program! We have high traffic volume right now, I hadn't quite anticipated the popularity of my little project! We'll be sure to match you with an Infection Specialist soon! You may be able to find a match sooner by posting on the forums!You've still got some time to wait, but you will receive an event once you've received your chosen virus!

My virus choice (Natural, earthy) is green and the I changed my mind-option is available.

That means you aren't infected yet. I have no idea how long it takes to become infected if you didn't receive enough different bites so your best bet is probably to find more people that can bite you. Good luck!

Thank you for the help :)

You are welcome, I hope your virus will activate soon. crosses fingers :)