the service sucks,, i took my car there last year ...

the service sucks,, i took my car there last year to get my car fix. they did not fix it right like they should.. they replace the head on the engine and strip out a bolt on the valve covers so it had a bad oil leak when i got it back so i took it back. they just put alot of silicone on the valve cover to stop the oil leak.. i just found out they did that after a year. i replace the valve cover on 2014 chevy cruze, when i replaced it i tried to tighten that one bolt, now i have a bad oil leak from that one bolt... the service manger was rude with me.