It sounds like you contact a scam artist for assistance. Roku does not have any charges of any kind for support. Since your user account and password are used to log onto the forum here, and you were obviously successful logging in here, where exactly are you having a problem logging in?
If your issue is with using a Roku device with a specific channel, we need to know what Roku you're using and what channel is the problem.
Dan Roku Stick (3600), Ultra (4640), Ultra (4670), Ultra (4800), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Nvidia Shield, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.