Best just to tell them you want the puncture repaired only... thats what you came in for .

Kwik Fit (aka Slow Fit) always try it on, balancing, new inner tube, nitrogen is a new one on me

They usually tell you the exhaust and shocks are dodgy too And try and flog you insurance

They once told me my exhaust centre pipe needed replaced in my SAAB. I said thanks for spotting it and they fitted a new one. When they said "thats £210 sir" I laughed and showed them the 3 year guarantee which they gave me two years ago !!