HARASSMENT VIA PHONE MARKETING

I dont appreciate being called up, told to hold for an important phone call, then after holding, some sales person begins to offer services I never asked for. That is NOT an important phone call, its an absolute ****, and the audacity of this type of marketing has my blood boiling. I wont EVER shop at woolworths again. WHO DO YOU THINK YOU ARE TO CALL ME, WHILE I'M WORKING, UNDER THE GUISE OF AN IMPORTANT CALL!! I HAVE HAD 3 OF THESE CALLS TODAY ALREADY. STOP HARASSING PEOPLE TO OFFER THEM CREDIT.