Upgrade from Gold to Platinum



Have DVDFAB Gold V 3098
Considering upgrade, his site shows different options, the first two I believe to be direct purchases, the third choice is to upgrade from Gold to Platinum for 19.99.
I sent several Emails to support to verify there is no upgrade to Gold and this will work but no response.
Trying to decide tonite as there is a dateline to purchase dated only today.
Has anybody upgraded using this choices? do not want to purchase the wrong item, as I did it years ago and never got my money back.
Any help appreciated