MZ,
You should ideally complete your studies first before applying. A poly diploma is acceptable should do you fine but if you're really worried about your english results, I'd advise you to resit the exam privately.
I've also heard that requirements are for applicants 26 years and above (judging that you're still studying at a polytechnic, you can't be 26 yet?) Nevertheless, give it a shot but don't be too disappointed if you don't get accepted. THere are many other ways to learning flying. This is just one avenue. Good luck!