Terrible Service after they Damaged the Vehicle we pirchased

I was even told that the car had a fully service on Friday and that the book was stamped but to my surprise it was not.

The marks on the seat, the roof and the carpet mats are from the valet they said was done and that I'm not allowed to was or vacuum my car for 3 days.

I honestly don't know what to do anymore.

Help help me find a solution or I will cancel the contract and go straight to the obetsman to sort this out.