Disgusting Way Of Marketing

<p>I received about 15 calls a day from a private number which when I answered it was blank. I was going through such a crisis at home and couldn't even block this number as it was calling from private number. It was non stop! Eventually I answered and heard a call centre agent speaking and asked where he was calling from. He said MTN and then hung up. This should be ******* just like sms's have an opt out button.</p>