Need help on consumer protectioin agency for california to get a full refund.?

my son ordered a body kit for his car, it did not fit, they did not send it and it has taken 5 months to get a full refund, they still owe me 150.00 now, i've spoken with them several times and they always say, the check will be in the mail next week, that was 4 weeks ago. it took me 3 month to get the refund for the kit itself, the 150.00 is for s%26amp;h they charged my creditcard. I didn't want the interest charged to me before, but now i think i'm due at least that for all the hassel, please help, Andy's Auto sports in Milpitas CA.|||Unfortunately I don't hold out much hope for you getting anything from Andy's. I too discovered (unfortunately too late) they're a very disreputable company with a significant number of unresolved/ignored complaints filed with the local BBB in Milpitas, CA. Their employees simply lie to you about cancelling orders and providing refunds. Your only recourse is to dispute the charge with your credit card company as I have done.