DSTV streaming ( old showmax)

i am trying to cancel my subscription to DSCT Stream, ( old showmax platform), i have tried endless way to speaking to stupid people at DSTV call centre who can barely understand english, to various websites and "live chats". please could someone contact me with proper instructions, i go onto the dstv stream site, go to my products, after that there is no way to go beyond this point, my subscriptions button does not work either, its pathetic. please help