Agreed... but actually depending on why TS wanted to clean... dust particle, lint, stain or fungus. For normal dust particles, just use a blower and blow it off. If the dust was stubborn or when there was some stain or sticky dust, can either go to P&G Photo and Camera Hospital or simply get a sensor swap + chemical solution from Cathay Photo and DIY.
If it was fungus... then I would suggest TS to go to NSC, easier that way.
Actually if it was just dust, it is better for TS to learn how to DIY clean the sensor himself or he would be busy going in and out of NSC whenever a stubborn dust particle get stuck on the sensor.
(Oh... I better edit my first post to include the 5th option )