Miles&More is offering a promotion to earn 5x the award miles for flight from/to Germany in Lufthansa's Economy class during the summer.
On selected routes you will receive 20 miles per 1€ airfare or 30 miles per 1€ airfare if you own a frequent traveller status.
You have to fly within Germany or between Germany and Albania, Austria, Belgium, Bulgaria, the Czech Republic, Denmark, Estonia, Finland, France, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, the Netherlands, Norway, Poland, Romania, Serbia, Slovenia, Sweden, Switzerland, Turkey and the UK.
Your flight has to be completed by September 30.
You have to login to your miles and more account and register there for the promotion.