Hi,
I've experienced similar problems with increasing oil consumption on my 59 reg 1.8 Tsi Yeti. I've been topping it up regularly over the last year but am now having to top-up every 100-150 miles prompted by the oil warning light. I recently booked it in for a service and they have identified oil leaks from the engine and it is awaiting further diagnostics. Judging by the the comments on other threads in the this forum this has the potential to be very serious. As the car has only done 52k miles I'm not at all happy! I'd recommend keeping very a close eye on the oil consumption and perhaps getting it looked at sooner rather than later.
Cheers