tires-easy delticom Sold me brand new tires that were over 7 years old. Old hard dangerous rubber. Benicia, California

This company sold me brand new tires that were 7 years old. I went to my tire shop to get them mounted and they said it would be difficult and dangerous to mount these tires. I called tires-easy to request a newer tire but i was told that there was another set that was a few months newer but nothing recent. They offered me a 5% credit back (roughly $20), I got furious and hung up. I ended up getting the tires mounted because i could not afford buying another set and found out that the tires are very hard (all season Pirelli) and have absolutely no grip on the road. I am waiting to an accident to happen on the tires so that i can take some legal action against them for selling a liability set of tires.