Vodacom airtime disappears

<p>Hi. I have had twice already where once I bought R55 airtime online and it never reflected on my phone and again recently Vodacom did not Top up my R110 airtime for April 2017. On Monday checked, my balance was zero. I only made short calls and those used up my R55 airtime that I uploaded on the 28 March. They claim I used this airtime...But I never even seen this airtime reflect on my phone.</p>