I am experiencing this issue, and despite sending emails, I have not received any response. My time is continuously running, yet there is no reply.
When will this issue be addressed? Where has the Cursor team gone? 
Just curious, do you have a screenshot or something that suggest a downgrade from pro to hobby. Unless your subscription expired, I am having a bit hard time to comprehend this bug
Hey, please send an email to [email protected].
Hello, I was using the pro version, and it’s been just a few days since I purchased it. While using the pro version, I was invited by a friend who uses the business plan, and after leaving that team, I was downgraded to the hobby tier.
I haven’t received any response to my emails. I really enjoy using the service, but the bug that causes me to be forcibly downgraded and the delayed email responses are wasting too much of my time. Could you please have someone from the team reach out to me directly?
Hey, I’ll DM you now to check where your email has got to.
However, if you’ve joined a business plan, your Pro plan would have been cancelled and refunded for the amount of time you had left for the month - this refund can take 5-10 days, so you may have not seen it hit your account.
To carry on with Pro after leaving the team, you can simply repurchase Pro!
As mentioned, check your DMs, as I’ll be happy to confirm all of this for your specific account.