Totally useless

Total pathetic service. More than 2 weeks been struggling. I purchased a new explora3 and struggled getting it activated. I took it out and put old decoder back after spending more than 2hrs on call centre calls. Today i purchased a new hd decoder for extra view as old one faulty. I have phoned the call centre 3 times tonight. They decoder gets activated and then gives E16 error codes. Now after spending more than a hour waisted again after its been connected for the 3rd times it again give E143 error code.dstv is totally useless lately! Waiting for my black box and cancelling all my dstv subscriptions! What a waidt of time with dstv