Frank Vos Worcester- Bad after market service

I have bought a new xrider double cab 4x4 from Frank Vos (Worcester).For the last two months I have been struggling to sort out a few problems. 1.My dash board rattles 2.Window tints making bubbles 3.For the last month I had to put in 2L of engine oil. I have reported this on 10 August 2021.I have reached out to the sales men and Manager but it's only excuses and **** promises that they will call me back.I have made contact with them about 6 times now.Its hard breaking to buy a brand new car ,pay it and then they can't sort this small problems out.Please can someone help?Frank Vos Worcester is a no go.They just make more trouble in your life.