network connection

Dear Ms./Mr.

I have the problem with the telephone network connection and need your help. I wrote the contract with O2 3 weeks ago and waited for the technician.
According to "Anschlusstermin" 14.03.2016 approximately at 13:10  technician visited my house and found out that telephone line from my apartment to basement is broken / not properly connected.

Apartment view:

https://mail.google.com/mail/u/0/?ui=2&ik=be50b9bca5&view=fimg&th=153892faa967e0b3&attid=0.1&disp=emb&realattid=ii_ilxixtcm0_1538921440c607f2&attbid=ANGjdJ8XL1hNhz5rjRgFEyEYQxj_XRh48UD9oUmZ_oyLO1p_3AI9dE75jjTU6oLezK5o0NtrEMce1-fYZIZtxNt9bV5aa1gsRjVPemC5oS_tCg2-0-ZoICzdzUfQIJk&sz=w606-h1076&ats=1458301876815&rm=153892faa967e0b3&zw&atsh=1
https://mail.google.com/mail/u/0/?ui=2&ik=be50b9bca5&view=fimg&th=153892faa967e0b3&attid=0.2&disp=emb&realattid=ii_ilxixtcw1_1538921440c607f2&attbid=ANGjdJ-RArH1svYcDucacicDz0a7M_0YOJL6k8-VVrK7JBR7ZSqyIFH1GZVglLQouCl9ksrfpeKD3czwkLx9ZmCzaVr4qftg6i0Tbh-nUDRT8T56TZj6Jf7iLO-jW0s&sz=w606-h1076&ats=1458301876815&rm=153892faa967e0b3&zw&atsh=1
Basement view:

https://mail.google.com/mail/u/0/?ui=2&ik=be50b9bca5&view=fimg&th=153892faa967e0b3&attid=0.3&disp=emb&realattid=ii_ilxizjhj2_15389227fd5180d6&attbid=ANGjdJ_ok4kvk3yBehpFI9D2meVPW6jTJxNfq0FcMeDxcyYC3gFYWn4zueo8xqB1EOLKaYjaPHFrn3EAaPd3cWvgUF6jxRSPddwU68jMMR48ptbHEqOq4kguP-As5_8&sz=w1076-h606&ats=1458301876815&rm=153892faa967e0b3&zw&atsh=1

He checked the wires and said:

"I have only 10-15 minutes to connect you and it is not enough to fix the line. So I'll write a report and someone will fix the line next time."

After that he left my house. We don't even opened the WLAN HomeBox2:

On the next day in the O2 local office I found out that the technician wrote in his report that I have cancelled the connection by myself. But it is not true.

Today I received SMS from O2 with appointed next "Anschlusstermin" on 23.03.2016 from 8 to 12 uhr. But if the technician have the same time for connection (10 min), for sure he WONT CONNECT ME again.

What should I do in this situation to be connected successfully and faster?

The internet needs me for work and I can't wait for one month yet.

I have flexible contract, just 1 month with further continue. If it's really problem to give more time for technician to check the wires, can I break the contract and give back the router?

Please give me reply to MartynenkoOV@gmail.com or here

Thanks and hope for you understanding