unfortunately I don't speak German I went to the O2 shop before 2 day and I I asked for one SIM card and a  guy start making the contract without without giving any information and I signed the contract after everything he ended up give me two SIM card and I ask what is this he say just take it and I went to a home I download the O2 application then I know what he made a contract for 2 SIM card what I have to do pay for SIM card that for two year how do I cancel the contract