Post Media Network - Registry Patrol ,XPmedic Did not deliver Software key. Auto response to email inquirey Internet

I downloaded and tested two programs named in "asknerd.net" XPmedic, and Registry Patrol. XPmedic did not work. Registry Patrol appeared to work, but key needed to "Fix". I purchased key from Post Media Network, using Pay Pal. No key has been delivered. One of the auto responses to my email had the email address "support@xpmedic.com". I did a search of "Post Media Network" and found they were linked to scams using XPmedic. It become obvious that the "asknerd.net" page was an advertisement. Registry Patrol and XPmedic would appear to be the same scam, using a different name.

Mark in Canada
Tatla Lake, British Columbia
Canada