Shameful Customers experience

I changed my primary decoder to a explorer on Monday and since then my Secondary decoder does not work. It's switch between working for a few minutes and then changing to the e16 and e143 errors. I have spoken to over 10 people at multichoice and my issue is still not resolved. When your request to speak to a manager you are put on hold for over 15 minutes and then they hang up the calls, They just have no shame in how they are treating their customers