Looking for serviced apartment Jan and Feb (Berlin)

Hi there,

Just landed my ream job and am moving to Berlin from 1st Jan. I have been given a relocation allowance and want to rent a serviced apartment for the first 2 months.

They would need to be able to provide an invoice/ tax receipt so that I can claim back the costs from my employer. (this means I can't use airbnb)

Can anyone recommend a supplier that I could use?