Insta Auto Solutions review: Used car dealership

Purchased a vehicle from insta auto in Edmonton. They stated on the inspection signed by their mechanic that it had 48k kms received vehicle on May 19th it had 55000 kms. I contacted insta auto to which they replied they would reimburse me 1000$ for being misled. I had a trade which had an accident on file insta auto was well aware of the accident and I have all texts with them saying they would give me 21800 because of this accident. So I received the vehicle on May 19th  and was promised 1000$ on May 25th. On June 5th the GM contacts me and pretty much yells at me. that he didn't know about my accident on the trade in (I have the phone recordings that he did know) and they wont be giving me 1000$. This is 2 weeks later I ask if my trade in was paid he said no and we won't pay unless you sign new documents. At this point I'm paying for 2 vehicles had my first payment come out for the new one and already paid my registration. I'm not in a financial situation to pay for 2 vehicles. He called me 7 times that day to threaten me with not paying my trade and saying if I don't want the truck bring it back (knowing I had already paid on it and registered it.) 

So I sign it and write a review of this company on a Facebook page. The sales manager finds my post and starts replying with my personal information as in my cell number and my banking details. She starts threatening legal action because I wrote a review of my experience and just goes absolutely crazy. I have all the screenshots as well. She calls me stupid posts my phone number what bank I deal with says the owner told her to post it!