Registration for author support.

I was told I need to register with my author for support using my purchase code. I use The Ramble Theme by Softhopper. Can someone please help me work through how I can do this registration?
Thanks. you can register there

amazingly their registration does not ask for p/code but still what you wanted in your other thread is customization which may well be beyond scope of support

Many thanks again!

God’s grace and speed!