You may have an email in your mail box from airberlin offering extra bonus miles if you use more than 2 of their partners between 1st September and 31st October 2014. You must click on the link to register before you can earn.
- 2 partner services – 2,000 extra award miles
- 3 partner services – 3,000 extra award miles
- 4 partner services – 4,000 extra award miles
- 5 partner services – 5,000 extra award miles
The promo email specifically says – 120 partners on the ground – which leads me to believe that flying will not score the bonus.
There are plenty of hotels on offer, including Hilton where you can ‘double dip’ and so keep your HHonors earnings.
Heinmann Duty Free at German airports also works if you set up their account and choose airberlin rather than Lufthansa.