I have been running Pro Sites for 3 years without many issues. After updating it yesterday I created a test account and was able to create a new site with a 1 month subscription. I also had a new client sign up for the same.
This morning we have both received emails that Pro Site has expired and the sites are no longer active. I have a huge convention this week where I always get lots of sign ups each year. I have attached a screenshot of one of the accounts.