Vodacom Service scores zero every time

<p>I use a Vodacom Sim card for my mobile modem which worked well in the past. When I sent an e-Mail to a business that I communicate with regularly I received an error message stating that Vodacom has blacklisted my e-Mail address.</p> <p> </p> <p>To query this I called the data support line 3 times. 15 minutes later and two consultantants, I spoke to a female consultant who put me on hold for a further 25 minutes 35 sec. at which time the automated questionaire requested an evaluation of the service receceived ("Zero" satisfaction)</p> <p> </p> <p>How do I communicate with someone who can resolve my problem or is the only solution to find a different Service provider after having accounts with Vodacom for approximately 15 years?</p> <p> </p> <p>Just another example of the level of service received in the "New RSA"</p>