Upgraded on 1st April now being charged 3 subscriptions

<p>I upgraded my package online from a Smart M to a Smart M+ with a Sony Xperia E5 on the 1st of April 2017. The subscription fee is supposed to be R299 and I am not supposed to be charged a upgrade admin fee because I upgraded online. On my Invoice due for end of this month I am not being charged a 2 subscription fees for a Smart M+ and one subscription fee for a Smart M package as well as an upgrade admin fee. My invoice amount is showing R1017.29. I have logged multiple queries since last month when I saw the outstanding balance already showing incorrectly but the queries are closed by the so-called "Solutions Experts" without doing anything. I do not know how Vodacom can get away with treating customers like this, this has happened previously to me and to my wife as well.</p>