Unable to buy data

<p>I attempted to buy data on their website with a credit card. It said "you have exceeded your daily transaction limit" I have not made any transactions recently. <br />I called the call centre - the agent advised she had reset my phone details and I should switch the phone off which I did. <br />I still get the same error on the website. <br />I sent an sms to 100 - it says the data bundle you are requesting is no longer available<br />I tried to dial 111# it says "error performing request. Unknown error"<br />Honestly vodacom - why do you make it impossible to buy data?</p>