I have to write a formal e-mail for a college, could you please help!

Hi, I have to wite an e-mail to the office of the college to which I'm applying, but I have no experience in writing formal e-mails and I really wish to do my best..

In the e-mail I have to tell them that I have sent all the application documents today

that I hope that everything is fine with the documents - if not, to contact me and tel me.. sth like it ...

And - that I really do wish that my interview date could be 11 march this year

And then to finish it in that formal way..

I'm really sorry - I'm from Bulgaria and English is not my native language at all and I also have never before written such formal stuff in a whatever language...

Please give me some tips, some of those sentences that are put in formal letters and etc..

Thanks