Hello dissatisfied (great name).
I had the same problem with Netflix and my P20 Pro until recently.
Since the contents of Teleclub are also transmitted encrypted, I can imagine that it is the same problem.
There is an exciting article about this [Article from Huawei](https://www.huaweicentral.com/huawei-p20-pro-and-mate-20-pro-now-support-netflix-hd-and-hdr-content- and-widevine-l1/). If Huawei does not have its devices certified, Swisscom itself probably has little or no leeway. Before I bought my P20, I never thought about it like that. It would be a great device, but if it doesn’t work then you’ll end up with Riccardo, which is why I’ve now bought another monopoly phone. It’s a shame, because Huawei already makes cool devices.
Greeting,
Bingie!