Over Billing Data Issues

<p>I continue to have issues with my Data Billing and Purchases. As soon as I run out of Data I try to purchase once-off bundles, but experienceJava Error Reports and I'm not always certain if the Data request has been accepted. This happened both in February and March 2017 and I've been overcharged by R2000 because of this issue. I run my business on this phone and cant afford to wait for Vodacom Errors and need to continue my Intenet usage at that specific time. Can Vodacom please have a look at this. We have a large account and I'm sure they don't want to loose our business.</p> <p> </p> <p> </p>