****py service and unreasonable billing

<p>I loaded a 1GB Vodacom data at 23:20:45 and received an sms that it is valid untill 8/11/ 2016 and I only logged on to my gmail account and the best thing at 23:41:59 I get another and that says you have less than 297MB remaining and at 23:44:14 you have less than 147MB of data available and at 23:46:32 you have 4.82MB remaining of your data bundle.At 23:46:35 your data has run out.I lost 1GB data within seconds after only living in to my email.How is that so?I have been using the same system for more than a year now and this has never happened before and when I called Vodacom they said in their system they can only see that I logged on to internet but they cannot see on which side.I am really disappointed and very angry and after using Vodacom for my whole life this is the time I cut tiez and say goodbye to both my morderm and my cellphone one.</p>