replacemant of wheel bearrings

I had this company replace my hbs and wheel bearrings last May. In Dec they started making noise again. I was told from anotehr Service station that it was the Wheel Bearrings. I went back to Maple Auto and Ron drove my car and said it was the problem. He told me to bring my car back in a week. The next day he called me and told me he would have to "eat" the job because he got a "deal" on the parts from a buddy he only sees once a year. I offered to at least pay for the $80.00 he charged my which was included on my bill of $470.00 to have the new ones pressed in. He then has me bring the car in the next week to fix it, calls me the next day and tells me it is not the wheel bearrings it is entirely two other things that would cost another $500.00. I picked my car up without him fixing it, had 3 other peolpe estimate it and they all said it was my wheel bearrings! I had to pay another shop another $500.oo to fix. That shop gave me my old parts that were rusted out and never replaced! This shop is a rip-off!