Last week, I exchanged a TV modem of 10 years old ...

Last week, I exchanged a TV modem of 10 years old without any problems, unfortunately the new one does not work properly.
Trying to exchange at kpn xl ekkersrijt but employee does not want to exchange it at first, as the power supply was not there despite the power supply of the new one that could be kept there (ego discussion because it is about nothing!). After this discussion about an appointment which is understandable (despite last week without problems) now that two employees in the shop 0 customers are also not willing to hand it over outside if necessary.
In short, thinking along and being willing is not worthy of KPN!