I have been using Blau.de for last 2,5 years. The internet is poor and it is a disaster if you need to call them to the call center. Be ready that they will not solve your problems. They have no offices in Berlin so you cannot basically do anything apart from calling them one more time. I tried to cancel the contract but then they renew it about 8 months in advance... If you call them to require to stop the renewal of your contract, be ready that you will get 30 mins pushy speech to make you stay with this company.
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Mobilfunk-Discounter und vielfacher Testsieger im Handytarife Vergleich für günstige Prepaid Karten. SIM-Karte wechseln und günstig vom Handy telefonieren.