Memo in München

I would like to rate the service, or should I rate non-existent service, at the stall in the train station. The customer in front of me was treated dismissively when she ordered her coffee separately from her friends. I wanted to buy a drink with a disposable deposit, but was not allowed to hand in the bottles I had emptied on the trip (disposable deposit). The employee seemed closer to his cell phone than interested in the customer.

There isn't. Munich administration building of the Dt. Bank. Work here. Correct address: Werhinherstr. 85