Complaint

I am still struggling with Vodacom to receive monthly invoices with a monthly statement of the total due. It has been sent via email for months and since April I don't get any statements/invoices unless I complain and request them on a month to month basis. <br> <br> According to Vodacom I owe R598-99 for outstanding payments. I only received, upon another request/demand, invoices for R222-50 and R347-49. The total according to these figures are RR569-99. This leaves an unexplained R29 which I have no invoice for. I have been asked to be contacted after 15:00 on week days and that I have informed them that I work on Saturdays. I received 3 calls on Saturday morning and another 3 this morning. Which part of AFTER 15