A "MAKRO" customer service ISSUE causing MASS(mart) anger !

WORST CUSTOMER SERVICE EVER EXPERIENCED (nogal from a Global Company) Bought a laptop online 8 July. After a week laptop do not even switch on. Looked for my on-line transaction on my profile....NOTHING. Called Customer Service and they asked for screenshots, phone messages....which I sent. Today 25 Aug.....16 emails later, 9 phone calls later (cumulating to literally HOURS)....still have not moved an inch fwd. When speaking to agents they say they will escalate...but NOTHING. When I ask to speak to a manager the "promise" me someone will call me....NOTHING. They let me hang on for >40min at a time not to bother to take me off hold or to call me back. I tried calling MASSMART offices but no one at reception picking up (4 attempts) This is the FIRST time I put a complaint on HELLO PETER as I am way past being angry and bitterly disappointed. The inability of the Customer Service to help a customer......simply amazing. I am sure Walmart will be PROUD of the efficient operation here in RSA (wink...wink...)