Extremely poor service from Telkom - unable to cancel or resolve billing query since Feb 2018

Trying to cancel account since Feb 2018 Need to resolve billing dispute Keep on phoning they say the escalate to back office Last call 12 Nov Themba said will email to resolution officer and cc 4 delegates they should have phoned back within 24 hrs as this is now long overdue Still no feedback Have to phone everytime but get same answer Please assist urgently Service number in question **********