What is meant by "no official" hotel classification?

In Germany the hotel star rating is a can do, but not a must have for a hotel property. Hotels with "no offical" star rating did not apply for an official classification, but according to the hotels own evaluation, their services are if not equal at least very similarto the pre-defined star rating criteria.

If you require more information on the German Hotel Classification system, please visit the Website of the German Hotel Association DEHOGA.

Preliminary bookings = options

Interplan does honor optional bookings, but to the high number of requests this is limited to 2 hotels per party and one week maximum.

Can I pay by credit card?

Yes, payment by American Express, Visa or Mastercard will be accepted, if the given card´s limit covers the complete invoice amount.
Payment of group invoices by credit card can be offered only against an handling fee of 3% of the expected invoice total.