DSTV YOU SUCK

Last week with power surge my secondary decoder blew, i went to DSTV and they swopped it. Friday installed and not working. Saturday they set it up to change primary to secondary and secondary to Primary it worked fine, except now the Secondary decoder did not work..Tuesday i cam back to DSTV in randburg with the other decoder which they also told me to get a diplexar which i did. finally wednesday night it was working perfectly no problems. i then noticed some channels blocked which the E19 error which i then send though a facebook message i got a message back to say sorted. since then i have not have DTSV again, i am getting the E148 error and unable to watch tv. please i am begging for assistance, it has now cost me over R600 in calls and 2 call outs from DSTV techs and still nothing for a week now. last night when on facebook messanger it came back on for a minute and then off again, i was promised a call back with in 2 hours its now 12 hours later and nothing, i have received the worst service possible from DSTV.