Call Centre agents & 2 Supervisors failed me

Early March i responded to DPP promotion by sending text to 32444 number. i sent the text few times then finally Call Centre Agent called. while talking with him the line cut but he never bothered to call again so we can continue where we left. After a week or so i called the Head Office logged a complain and spoke to the Supervisor in Inbound named Thapelo and promised to escalate the query and ensure that i am contacted the next day but that did not happen. two to three weeks later (yesterday Friday 10 April) i called logged same complain and i spoke to Khumbulani Zulu Inbound Supervisor who even forgot to call me back for feedback as promised, he also escalated the complain and promised i will be contacted same or next day by the sales department handling the DPP promotion. nothing happened.<br> you don't escalate a complain for the customer and set the deadline with him then fail to follow up or give him feedback. this is poor customer on its own.<br> i lost aitime phoning doing the job supervisors were appointed to do. i need to have my complained resolved as soon as possible.