Help In English Please

[FatemaAhmed]

Hi everyone I again need your help. I've applied for my visa in German Embassy and I have my visa interview on 19th march., for that, i need a recommendation letter from my professor and I'm going to write him an email, I want you to please proofread my email. Thank you in advance and I'm sorry I'm asking again here :)

-----
Dear professor,
I hope you had a great weekend.
I’m writing to ask you if you could write a letter of recommendation for me for my visa application I have my interview with the German Embassy on 18th March.
I would be grateful if you can issue me the latter before 18th March and please let me know if you need any additional information.

Regards,
Abc

[CrapAtCryptics]

A full stop after application, letter as opposed to latter and a statement of thanks at the end.

[bookbinder]

Dear Professor,
I hope that you had a pleasant weekend.
Would you be so kind as to write a letter of recommendation for me, concerning my visa application. I have an interview at the German Embassy on the 18th of March.
I should be grateful if you could let me have the letter before the 18th of March. Please let me know if you require any additional information.
Yours sincerely,
abc

[Apc2604]

Agree with thanks at the end

With Many thanks.

Regards,