The network is only available in large cities, the...

The network is only available in large cities, the Internet only 3G, no LTE, but also very weak and slow. Internet disruption almost at all times, in addition to that the customer service is very dirty, incompetent consultants who don't speak German and can't answer a question, if an answer comes then it's wrong.
Network 2/10
Customer service 1/10
Offers / price 2/10