Some time ago I got auto-renewal of premium Xing services. To make it clear I am not using these services and I can't even remember the moment when I enrolled for them. In any case, I did not receive any notification about upcoming renewal (otherwise I would just cancel it).
When I contacted support I was told that my cancellation was not in time (minimum of 3 weeks before renewal), read more here (link at xing terms#a-7)
In short, I am "forced" to pay for services that I don't need and see no value from. Support responded after 10+ days on my 2nd inquiry, which is also bad.
Note: This review is based on recent experience with Xing and also on the fact that now I am paying for something that I have 1/5 star value.
If I recognized any value in my premium account and if this wasn't "forces" my review would be much better.
Still, taken into account that service already has 1.2/5 star rating, which is very low, seems like I am not the only person having this same experience.