Utterly pointless to get the TDI for that kind of mileage. The 2.0T is far better, it'd only be a few quid a month more in fuel.
And yes there are plenty of problems with DPFs if you do short journeys.
Yes if you want better MPG drive further.
You'll never get the advertised figures as they're not real world figures just lab numbers.
Diesel engines take longer to warm up so a short commute is not what they're good at.
Buying a diesel for such a short commute wasn't a great idea, you'll not...