followed an arr-stack tutorial and paid for usenet.pro as my usenet provider. everything worked fine for few days and out of nowhere i start getting "Failed login for server reader.usenet.pro [502 Authentication Failed]" on my sabnzbd. all my credencials are correct, nothing changed on sabnzbd. Used usenetpro's troubleshooting tool and it tells me "Username [PRO****] and password [*********] combination is invalid." and they wont respond to a support ticket.
did i just pick a shitty provider? if so, can yall help me pick a better more reliable one. Also, is there a way to get a refund from usenetpro that yall know of?

Thanks!