Dear C,
thank you very much for your quick reply to my request.
Is there any chance for you to let me know in what time there might be a decision by the financial department, or, in other words, how long or short "as soon as possible" actually is?
I really do not want to rush you, and I am very sorry for having to impose this additional request on you. My deadline for applying for... , however, is running out on (Datum einsetzen), and I need a confirmation for the financing by then at the latest.
Or: and therefor, I need an confirmation from your company by (Datum ansetzen).
I would be really grateful if you could find out for me whether that is feasible or not, as, otherwise, I would need to look for another financing option as soon as possible.
Yours, sincerely (and gratefully),
N.