Fraudulent ad BEWARE ! - $450 (Cornelius)

I'm putting this posting up to warn everybody looking for a Border Collie puppy there's one still currently on here asking $450 for Border Collie puppies I went to get one and ask the seller specifically whose name is Ben if it was a purebred border collie and were both parents were Border Collies and he said yeah.
This was three and a half weeks ago.
About a week ago I noticed this dog was growing awful fast so I went online and researched he's 23 lb at the time at 12 weeks old.
There was a graph on ages and weights and different breeds.
At 23 lb he's the same weight as a 6-month-old Border Collie.
And at 12 weeks old and 23 lb his projected weight could be between 120 and 140.
I have texted him numerous times called and left messages and he's completely ignoring me, proving he knew these dogs were not 100% Border Collie and he won't even tell me what the other half is.
I'm to the point now where I'm going to report it to Craigslist and I might end up going to small claims court.
Stay away from that ad it's the one with the picture of one female left with a half black and half white face they resemble Border Collies with their color and that particular picture is about 5 weeks old.
Even when I pick them up I made a comment about he kind of got long legs for a border collie and he said oh yeah parents do too.
He's a scammer stay away from there!