Quality of work is questionable

Ok.. it's a long one.. Had my car in for repairs to the front end and I'm NOT happy at all with the end result. Sure, all the parts that had to be sourced is of course aftermarket, but the quality is not great. The first week my car was there, the bonnet, left headlight and fog light and bumper had to be replaced and the left fender fixed. When i went to collect my car on the Friday, I instantly saw the flaws. Fog lights weren't working, Replaced headlight (Day running light) was much brighter than the other side) Dent on the front edge of the bonnet, bonnet is so thin, when you press on the one side the other side lifted up!. Paint bubbles from the respray and some small chip marks on the resprayed components, bumper is warped at the bottom and bolts sticking out at the bottom of it which is not evenly spaced even. Don't know, if this was the only way to fix the bumper then, why they did not put black grommets instead of stainless steel bolts and drilled evenly spaced holes to fix it.. There is also faded spots on the newly repainted bumper.. So the next working day (Monday) i took the car back for these things to be fixed. The car was there for a week again. Went to collect it again Friday and again saw flaws and a part which wasn't even relaced again.. They just fitted the broken one again. My fog light LED's (which was very expensive BTW) was removed and original YELLOW color halogen bulbs were fitted (which i did not ask them do) I would have take the car to an Auto Electrician to sort that out. I asked them for my old LED bulbs and one bulb's fitting was missing and also the light was very dim.. It was perfect before even with the accident/damaged light, it worked perfectly! I saw some things sticking out under the car and i was told they had to fit extra clamps to support the bumper underneath to "straighten" it out (because it was warped, as I mentioned) It just looked terrible. So after speaking with the owner of the company and him telling me it's aftermarket parts and I have to sort it out with my insurance company (the insurance company is NOT responsible for getting the parts and inspecting them for a proper fit!) It's a matter of the quality manager (if there is one?) to inspect the completed job and point out flaws. Clearly this was not the case. I got in my car, fuming, and left.. When i got home i crawled under the car and saw that the "clamps" they were talking about were not clamps at all. It is the plastic engine cover which was not even fitted back properly.. Also my old (original) bonnet was aparantly fixed and replaced, which i admit is much better than the aftermarket "cardboard" they had on before. But can still see chip marks on the edges.. The headlight as well had condensation inside, but at least I don't see that anymore.. Maybe it was just my bad luck with them as I see other reviews were excellent (the reason for me choosing them as the repairer), but it was really not a good experience. So let's see what happens now. Someone who doesn't know the car would say it looks nicely repaired, but I know how it should look. The 2 star is only there, because the receptionist, Vanessa and I believe the owner's son was friendly. A plus point is that the paint blending to the rest of the car was quite nicely done on the new bumper and bonnet