R.A Number for retail return pro tools 12

[Genao25]

Hello i have Pro Tools12 Perpetual License and my updates and support plan expired i run it on my Imac it was repaired recently they upgrade my operating system to high sierra now my pro tools12.7.1 is not working properly. I Went to a Guitar Center and was sold a update and support plan renewal instead of a reinstatement. I tried to return it its been about a week and they keep telling me that they are waiting on guys to send them a r.a number. I was wondering if you can help with this r.a number thing so i can get the reinstatement instead of the renewal.

Thank you!