Hey there. We just wanted to chime in that you can avoid the account closure by logging into your account within the 30 days (since receiving the email pictured) and selecting the Cancel Account Closure link contained in the email. We certainly do not want you to lose access to your games or account so if you have any difficulties logging in then please create a support case with us. >> ubisoft.com/help
Sony did this to me I'd bought quite a few vita games digitally. Left it alone a few months and then saw an email where they said to keep the account log in now. Tried to log in but they'd already wiped it.
It's probably different on consoles but on PC buying a "physical" copy these days is usually just a box with a code in it to download the game, no discs anymore.