Blocked line due to Vodacom billing error

Vodacom had an issue of double billing clients in December 2015. Thus the amount was refunded.<br> <br> And now they state that my account is in arrears by R2700 , the line had been blocked and i cannot call then due to being in Lesotho! <br> <br> This is unacceptable and i am looking elsewhere for a cellular service provider!<br> <br> I have tried to make contact to rectify the issue via email, but no return contact has been make.<br> [Email Removed]