Just to verify that you are looking at the right number, are the first four numbers 1160? Please do not post the full serial number. We are all users like yourself and have no access to any Adobe records. But we can verify you are looking at the right number if those four numbers are right. And all characters are numeric.
Yes the serial starts with 1160-XXXX-XXXX-XXXX-XXXX-XXXX. Six groups of four. Tried support again last night to no avail. They said it was being escalated and someone would contact me. I can only hope......
If Adobe support has escalated your problem then it would seem that you have more direct contact than what we can provide here. Unfortunately, I think you will just have to wait until they contact you. If you are certain you are entering the number correctly and it still isn't working there really isn't much we can do for you from this vantage point.