Data charges

Vodacom sent me an sms at 10:46 stating that I have 4.92MB of data remaining, and I had just switched on my data. I went through two emails and deleted the rest without opening them, at 11:11 I switched off my data and at 11:13 Vodacom sent me an sms stating that my data bundle is depleted. When I checked my airtime balance which was R101.14 before I used data it has gone down to R87.14<br> <br> My question is, why deplete my airtime and then notify me at a later stage that my data bundle is depleted. Please refund my R14 it is not my problem that you have sent me a delayed sms, this is not the first time and I have had enough of this because last month the same thing happened and I lost R48 in less than 10 minutes, this is not fair. <br> <br> I want my airtime ASAP!!!!<br> <br> Vodacom is the best network but it disgusts me at times.