I've interviewed at two companies (both big, international organisations) and I've received offers from both.
I much prefer company A, but it's been a couple of days since they called with their offer and they've not sent any email confirmation. Is this usual in Germany?
I'd be irresponsible to turn down company B with nothing in writing from A. In this sort of situation would it be acceptable to call/ email A, explain, and ask for their on-boarding documents?
This is not something I've experienced before and I'm not sure what the procedure is. In the past in the UK, I've received confirmation of the offer via email directly after the call.