We will be arriving in mid- September for a four night stay. A 72 hour travel pass won't be quiet long enough, and the 7 day pass is still quite a bargain.
Unfortunately, we will be arriving very late in the evening at the airport, and the service desk there will be closed. We'll take a taxi to our hotel - the Radisson Blu Beke. The next morning, where would the closest location be that we could purchase the 7 day pass?