It should be no harm to coercion and buy this product. Cumbersome and misleading. Better, so I'll have done it, you go to the Telekom-point and buys a XtraCard for 9.95 euros; is equal unlocked with 10.00 EURO actually garantierem balances. In any case, in order not to have stupid writings "tavern" with the seller I recommend this to debited amount and everyone to leave it alone.