Service is non-existent. We can write a book about...

Service is non-existent. We can write a book about it but you don't deserve that. You don't even earn a star, but we have to give one, otherwise this review cannot be posted on Google.
It is bad enough that you have to wait almost a week and a half for a technician to pass, but what makes it worse is not knowing between which hours you can / may expect this person, with the result that you are always obliged to take a day's leave. take.
On top of that if your technician has called and you cannot answer - which is always possible since you are working - he / she does not record a message nor does he / she answer if you call back. Even if you leave a message, you will not even receive a response! In addition to this throughout this process, nobody is willing to help when you call the "help desk". There they hide behind rules.
One of the absurd rules that I was told is that you do not know which technician has which route / customers and therefore cannot contact you. Today with all the technological gadgets, planning software and the like, and yet you can't do this ??? Imagine that as a multinational anno 2019 !? Another issue is that you work with electronic vouchers, but if I wish to receive this, they send me to my kitchen installer, where I bought a kitchen almost 10 years ago and today has nothing to do with me or the problem. After 3 friendly attempts to make it clear to the person on the other end of the line that I would like to speak to the technical service, I gave up.
You send satisfaction surveys through but don't do anything with it!
The result is a service that is very superficial, without content, without added value ... a sad story.