Bad customer service

<p>In May I paid a amount of R5560 into my vodacom account, I have phoned several times and logged calls. For the credit amount to be paid back into my account. </p> <p>Vodacom does not come back to me. And only ask for the proof of payment. But on my account the credit amount is showing. I have mailed and faxed the proof of payment to them. I have done everything they asked. But now i do not hear from them.</p>