channels bloccked

I paid my subscription last week, dish was playing until this morning some channels were not operating, error code was E-16( channel blocked) I called them and was told that there is an error and was asked to hold while contacting Supervisor to fix the error, waited until my airtime finished, not it is worse than before all channels are blocked and the error code is E-18-a(the programme is not available in this country) I don't know what is wrong with DSTV really, instead of the helping me, they frustrate me even worse, Now I tried calling again and I waited for more that 3 minutes, what a pathetic service we receive from DSTV, last month after paying the channels were blocked had to contact them, meaning that every month I must carry a burden of calling them fir something that they need to avoid.