Technician misses appointment, no show, no cancellation

Hi,

It seems that this is the norm rather than a surprise, but the o2 technician did not show up today in the agreed window (4hs seems enough to either let the customer know they are not coming or find a time?). 

I have no internet connection for 2 days now. 

The phone call with the IT guy arranging the appointment went like this:

• Halloechen, o2 Technik… [proposes date and time]
• I ask confirmation of date and time to double check
• Yup
• Ok, that works
• Hangs up

This is the quality of service o2 is offering for their over-average market rates? 

Would be happy to cancel the contract and avoid dealing with such levels of professionalism again if this continues like this.