want to contact my MP about my ILR application

hi guys, My ILR application( 10 years) have been sent out for almost 7 months now, still no news.
I want to contact my mp now, but should i write letter to him or just use email?
here is his contact detail,
Westminster
House of Commons, London, SW1A 0AA
Tel: 020 7219 4345
Fax: 020 7219 0152
hemmingj@parliament.uk

Constituency
1772 Coventry Road, Birmingham, B26 1PB
Tel: 0121-722 3417
Fax: 0121-722 3437
john.hemming@jhc.co.uk

which one should i use? westminster one or consituency one?
Thanks for the reply~~

Hi

Best to send a letter.In your case send it recorded delivery to the constituency address.If you don't get an answer send it to his email address and parliament.If you are worried do all three!

Hope you get your visa!

If I were you I would ring the constituency office and ask for an appointment to see and raise the matter, at this time you can give your written letter to the MP.
I did so for another matter and my MP was very helpful, though he could not do much.

Even this site could be used

http://www.writetothem.com/