Don't take the risk, Trust me

I left my vehicle with Dynamic parking on the 21st to 24th September 2018. Good thing is they were on time and didn't keep me waiting. Upon receiving my car, I immediately noticed it was dirtier than I left it. It had dark brown water marks ALL OVER which shows that they either used very dirty water to wash the car, or they didn't use soap. The inside of my car was not cleaned either and had an awful stench. I noticed white marks along the front of my bumper and freaked out. Turns out, it was some powdery substance which suggests that the driver drove into something soft (as it didn't leave a scratch thankfully) and covered in a white chalky substance, Lord knows what that was. I brought that to the attention of the old man delivering my vehicle. He then showed me that the person who collected my car marked my entire front bumper and rear left side of my car as "damaged" when he collected the vehicle!!!! I was furious as my car is brand new and it was spotless! This was very dishonest of them, VERY! I will never use them again.