allignment

Looking for some feedback on this issue. Last Summer I bought brand new rear tires for me E46, and then 2 days later got a wheel alignment. A few weeks later, I noticed a slipping feeling so took it back in. They said, for some reason it had slipped out. They fixed it again and a few weeks...

I have been hearing rubbing noise when rolling at lower speed <2500rpm, the stealer told me it's due to bad lower control arm at passenger side, and as usual, they recommend replacing LCA #1 on both sides, and also the ball joints #4 along with them in below chart...