MyVodacom site not working correctly

When I log in to the MyVodacom website, it lists the 3 numbers which are on my account, with the data of the primary number and it shows the data balances on this number. So this one is OK. If I want to see the balances on the other two numbers I select the other number with the drop down menu, and the top of the page change to the new number which I selected, and it shows the estimated cost to date for that number, which appears correct. The problem is that the minutes and data balances does not change to the new number and it gives the values of the primary number only, for all three my contracts. This problem started end July after a website update, before that it always worked correctly. I first reported it to Vodacom Customer care on 07/08/15 and about 8 times since then.<br> Each time they say that it will addressed but it is still not functional.after three and a half months