Australia /
Australian met a Polish girl - visa issues [16]
You will have to go back to Aus to apply for a spousal visa, WHV are simply for that, you can only work 12 months out of the 2 years and there also might be problems because you gf is Polish and not a British citizen or a perm resident in the UK, she will also have to provide financial details that she can actually support you, since you will be her dependent..
Be careful what kind of information you are submitting, they're really strict on the rules of WHV these days.
Over staying isnt a good idea since they'll just deport you if you are found not to have the correct docs and NO company will employ you without the right documents since they are liable for a £10,000 fine these days.
Sorry I couldnt be more positive, but thats the way it is here these days.
You might be better applying for a working visa, but its points based now so more difficult than before, again you will have to do this outside of the country.