VODACOM UNWILLING TO ASSIST

My line has been suspended, when calling into accounts I am told they cannot help me. I must call the DATA department to find out why the line went over limit when it had a cap on and I must just go pay my account. Unwilling to listen to me and threatened to cut the call. I then called Vodacom Customer Care who are offline so unable to help me. Very frustrating so I must just pay or sit without a line.