Clearly Serafe is just going to be a repeat of the Billag shambles.
They've used really old data from the town halls.

Our friend left Switzerland at the end of June and her mail is redirected to our CH postbox for a year. We have now received a 2019 Serafe invoice for her despite the fact that she has not been a resident now for over 6 months!

Her name is at the top. Underneath there is the name of a woman who used to reside in another flat in the same building. I think she moved out a couple of months before our friend. So the data they have on file is from about March/April 2018. Utterly pathetic.

Presumably had this other woman's name been at the top and our friend's name underneath the envelope wouldn't have been redirected. Either way both names are correct and neither are subject to the charge at the address invoiced. This is just another example of huge a waste of resources.