Here is the form of confirmation required.

Haus XXXXXXXX
Familie XXXXXXX
Austria
6574 Pettneu am Arlberg xxx

Tel./Fax (0043) (0) xxxxx xx xx

Hereby we confirm the reservation of 2 persons apartment for the period of 19.01.2008 - 02.02.2008 for:
Ivanov Ivan, date of birth xx.xx.19xx, passport 62 xxxxxxx
Ivanova Maria , date of birth xx.xx.19xx, passport 62 xxxxxxx

We also confirm that we have received full payment for the above accommodation in sum of xxx Euro on our bank account:
XXXXXXX Bank BLZ xxxxx, acc.xxxxxx

Date, signature, stamp (if you have it)

Please write it in German, on your letterhead if you have it, and send by fax to my office