Click the below link to get a quote from Warranty direct, they can fully cover your DSG gearbox. 
Warranty Direct is the industry's leading provider of direct consumer warranties. They specialise in mechanical breakdown insurance for vehicles coming out of the manufacturer's standard 3-Year warranty and they can offer warranties for most cars up to 10 years of age along with vans, motorbikes.
They have consistently been innovators for the sector, with the customer at the forefront of everything they do. Their policies include unprecedented cover for Wear & Tear, Failure caused by non-insured parts and failures discovered during routine Service and MoTs.