Guys i have purchased gsa ranker license from this forum but now that is not working

Guys i have purchased gsa license for 90$ here and seller : please don't ask Because of privacy and i have tried to contact him and he told he is in travel and not camed online after that . when i enter license it says contact gsa customer support and i have contacted gsa with his name and still they told me to contact with gsa registered email as he havin't given me register mail with gsa , so i need You Guys help what to do lots of messages i have sended to the seller .

by freelancers via TBN