Showmax frustrated!!!

I have spent an hour on my phone with Showmax last Saturday trying to find out why I cannot watch Showmax as I did the day before! The error LNK1020 was on my tv screen. Thursday another hour on the phone. Error HAP1000 seems to be the problem. I have tried everything from signing out of my profile and signing in again. We pay via DSTV. WE ARE SUBSCRIBED on DSTV and Showmax. Our download speed then was the problem, but it turned out not to be true. As soon as the technical support realize they cannot help me, my problem gets upgraded with a promise with someone to phone me back. This is the worst service I have had in many years. Has anyone any idea HOW I can solve this very frustrating problem?