Seller reneging on signed deal

[William Johnson]

I have a signed deal on a property. 

Closing date 22 April 

Inspection 17 April 

Purchase price  193k

repairs 150k

Arv 490k

I signed on Tuesday and they haven't responded to any phone calls. I have looked into legal options and have called numerous times. 

What is the standard response in this situation? I know that I made mistakes that I can correct for the next time but I wound line to correct this one now.  My next move is to go to their house.