PAYG aairtime disappears, web complaint does not work

<p>On the evening of 2017-07-20 I checked my PAYGO balances and had 2Gb of data and R 100 airtime. I made no calls and on the morning of 2017-07-21 my airtime was R 0.</p> <p> </p> <p>I sent this message 3 times to MTN using their Web interface. Each time I get an email like this:</p> <p>Good day,</p> <p>Please note that I'm out of the office, for any queries kindly send to #CSMTN GAU - 173 VIP Sups.</p> <p>As well as an undeliverable message:</p> <p>Delivery has failed to these recipients or groups:</p> ********** <p> Your message can't be delivered because delivery to this address is restricted.</p> <p>The only way MTN gives the opportunity to respond, is via this broken web message.</p> <p> </p> <p> </p>