Where to enter a tech supt case number?

Hello Bill,
I see that you have contacted our chat support for help regarding an installation issue on your Mac. Your concern has been escalated to higher level technical team, they will analyze your issue and get back to you via email with a resolute solution. Please keep checking your inbox and spam/junk folder as well.

I have an account and a tech supt case number (#05350323) given to me yesterday by a chat rep who was "upgrading" my query, but I cannot open this case? (I've tried entereing the case # in "Search Support", but no joy?)

Hello Bill,
I see that you have contacted our chat support for help regarding an installation issue on your Mac. Your concern has been escalated to higher level technical team, they will analyze your issue and get back to you via email with a resolute solution. Please keep checking your inbox and spam/junk folder as well.