unprofessional and rude customer service

I subscribed with dstv from last month and ever since then i have a bad experience from it. i struggled with pairing my smartcard with the decoder and i couldnt get help from their call centre from there they are so rude and unprofessional they told me i have to go to their offices for software upgrade then when i get there the system was off i had to wait for the whole week without watching tv after that its today whereby am watching then it just went off,now it says i did not put my smart card correctly which is surprising because i was watching the whole day and i ddnt even touched the decoder. i called call centre and nothing helped my tv is still blank.their customer service agent are not helpful and their selfservice is not helpful at all.