AAA Engine Transmission Your Engine Store Y.E.S. Ripped off on an engine Houston Texas

I contacted Y.E.S Your engine store AKA AAA Engines. Com and spoke with a Melissa and she seemed very knowledgable about the 2007 6.1 L Cadillac engine I needed to have replaced. I was told that the engine they would send me was tested and in perfect running condition and was powerwashed and could be shipped right away. The price was reasonable compared to the other 3 used engine companies I reviewed. I called back to place the order. Then engine was to be priced at $1650.00 with free freight. Whe I placed the order I was charged $1,700.00 and when it was delivered to the shop where the car was being repaired,  the engine came 5 days later with $160.00 COD freight. The oil plug was in bad shape like someone had used pliers to take it off, and it was in pretty rough shape. When the engine was tested by my mechanic, he said it wouldn't start. They pulled the cover and the engine was filthy inside and the timing chain was off 2 full marks from where it should have been and was extremely loose. He said there was no way that the engine would have started. By the time my mechanic was finished replacing everthing that was wrong with th engine it was almost an additional $1200.00 in parts. Also there was no way to know the actual mileage on this engine but it sure doesn't sound or appear to be that of 84K like the Melissa stated. I called them and got Melissa on the phone. It was obvioius she was well versed on arguing with people as she had every answer and denied everything asked. She constantly talked over me and finally told me we were done and hung up. She told me when I first called to order the engine, that the engine was taken apart and tested and had the belts pulleys and anything that needed changed done so the engine was in good working order. When I asked about warranty coverage after all the repairs, she said they do test the engines and put whatever they need on the engine to test it and then that was pulled back off and the original chains and pulleys were put back on. I call bull s**t on that. No one would spend that much time to do that. It's a lie.This company is not trustworthy and should be avoided at all cost and please put out the word to make sure everyone you know is aware of it so they are not screwed like I was.