I bought the car privately, the previous owner bought it from where I took it today (VW main dealer) so it's remained serviced at the same VW dealer and been in the area since new. Come to think of it now, she was quite cheeky in her way of speaking to me as well because she wasn't bothered about what I asked at all. When I asked her about the price of the timing belt change, she said it's "roughly £450 or something" and got me on my way. As I didn't know what to hit her back with, I simply walked out. There's another VW garage not too far from me, I'll give them a shot and see what they say. They're supposedly better judging by their online reviews as well.