The membership fee is 500 Euros, about $ 700. The sales person at the airport promised "2 free return flights within Europe" as a reward. But the miles were never credited.
Next, they promised to refund the membership fee - but that was only a partial refund. *** Then they promised to print a new card, but I had to collect in in person in Bangkok. No card - more wasted time!

Get a normal credit card and shun these people!