Telkom Poor Customer Service

Im am so ****ed at Telkom right now, i purchased a unit online, was told it will take 5 -7 working days, after 7 days have passed i called to change my delivery address because i was about to go on leave, they then gave me an incorrect traking number and also an incorrect number to call the courier company. Then i was told devise would be delivered between 7 - 14 days, and all i wanted was to change the address. I was sent from pillar to post because the info given to me wad wrong, i called telkom again and was today device will be delivered by cob and still nothing. I called again today they "offline" spoke to Samkel Mbele apparently a supervisor in sales, she was so rude wouldnt even let me vent and then she keeps on saying helo helo helo while im talking to her. I had to beg her to take my details for someone to call me back. I mean how pathetic is that? Why dont you just tell the customer the right info 1st time to avoid this from happening? I so badly wanna cancel my order but no one wants to help me do so. So ****ed right now