Advice needed on seat leon issue please!

[Sgubz]

Right, where do i start...

This is on a Seat Leon FR TDI 170 56plate

Started off with gearbox bearing needed replacing. Went to local vw/seat/skoda dealers to do the job, hoping for a reliable job. After three weeks i got the car back, and with a much bigger bill than quoted. Fair enough, at least its sorted i thought. Soon after i noticed a whine / grinding noise every now and again, and after a bit of driving i noticed it only happened when changing down the gears to slow the car down after vigorous accelerating. Worst of all going from 6th to 5th. The clutch also felt different when this happened.
Ive now taken it back to the dealers expecting them to sort it out on warranty from the previous work. They are now trying to say its the flywheel that needs replacing and that they will cover the labour cost if i pay for the part. Flywheels arent exactly cheap. Now im no mechanic but something tells me it isnt the flywheel thats the problem. It certainly felt like it was a whine from the gearbox. Plus the enigine idles smoothly with no vibration, which, if im right, would happen if it was the flywheel?

Any advice please, cheers

[bearman68]

Presumably they checked the flywheel when they had the gearbox off?

[Sgubz]

So you would think! What makes me think is they quoted a price of 600 for the flywheel, which is very similar to the labour work on the gearbox. Are they using the "flywheel issue" as a cover up for their balls up on the gearbox and making me pay for the labout on that?