No bill received again

Good day on 23 November I complain that I didn't receive my bills and it was sent to me in a format that I couldn't open it. It was rectified a nd then I didn't receive any bills again in January. I complain on 2 January and it was again sent to me.<br> <br> Now for the past 2 months I didn't receive any bills again! When will this be sent to me without me complaining! Vodacom deduct the money each month but without me being sent a bill so I don't know what will be deducted before hand! please please handle this urgently!!