If you're thinking about getting home wifi in Germany or Berlin, stay away from O2. Here's why: This company operates as if it's above the law in Germany, completely ignoring customer complaints and failing to deliver promised services. Just take a look at their online reviews. They continue their poor business practices without any real consequences. It is quite remarkable that the German government continues to allow such a malevolent company to operate with such disgracefully poor business practices. I signed up for home wifi with O2 in Berlin back in June 2023. The installation technician never showed up on the agreed date. I tried everything to fix the situation – visiting their store, lodging complaints online, and calling their hotline. Nothing worked. I couldn't even reschedule the installation. Then, to make matters worse, they started charging me for the installation and monthly service fees without providing any service. This has been going on for over ten months. No one at the company seems interested in resolving the issue. Instead, they've decided to send their lawyers after me for payment of services they never provided. Honestly, dealing with O2 has been a nightmare. Their lack of responsibility and customer service is shocking. I strongly advise against using their services. Save yourself the hassle and look elsewhere for your needs.