+1 for walking away. If it was on 60k miles then it might be worth looking at provided you get a no questions come back on the dsg. 2½ times the recommended service period on a dsg is not good and whoever ends up with that car should be very careful.

Might be a good idea to contact Skoda and see what they know about the car.

I believe they have a full record of a car's service history if they have serviced it.

Any dealer should have access to this info. (Assuming Skoda have serviced it.)