You are right I did not need to panic, because:
1. The trial version is fully functional and last 45 days
2. The sales replied my email and reset the code for me in 24 hours.
I am very satisfied with your service.
Thank you!
There is probably no need to panic at all. If you have already emailed sales they will get back to you.
Yes, a license is tied to a machine. That is why you need to deactivate yourself. They can help you from sales side but then you need to wait for them to reply. Next time you can do it yourself.