What are your rights if your new-build goes wrong? DEAN DUNHAM on what to do if there is a problem with YOUR property.Smoking is terrible for your car's value shaving thousands of pounds off its price - and some dealers REFUSE smoked-in motors.Will I lose pension tax relief on my 75th birthday - even though I'm still paying tax running my own business?.Two-year fixed rate mortgages edge closer to 4% as Santander launches new best buys.Now the humans at iRobot are ignoring me: CRANE ON THE CASE I paid £889 for a Roomba robot vacuum that doesn't work.How to turn £100 into £225 with your work pension: SIMON LAMBERT on the retirement savings trick you should start as soon as possible.How to make a company listen to your complaint and get your money back: LUNCH MONEY.I'm a 65 year-old renter and inherited £85,000: Can I still get a mortgage to buy my own home? DAVID HOLLINGWORTH replies.