S138884 - not a good news
But I wish you luck with your 'plan B', whatever it is...
Mujimania - congrats!
This question about interview was asked before - check
this post and several ones below it.
First of all, you must know your goals clearly and make sure you prepared answers to 'why MBA/Oxford/now.'
If you have interview with faculty, you also may expect some industy-specific questions or questions on general economy issues and market conditions. If you have interview with adcom, you might have some tricky and unexpected questions as well, but these questions are typically less connected with specialised industry issues.
Anyways, don't expect a mere 'fit' interview - usually, they are indeed trying to understand the way you are thinking.
Good luck!