Receiving no Statements from VODACOM

Vodacom handed over my bill to Munnik Basson Dagama Inc. MBDINC has been deducting R350 off my bank every month which was fine. Vodacom used to send me an invoice every month to indicate these payments which was also fine. Then all of a sudden Vodacom stopped sending statements. Today's date is 13/12/2018 and I last received a statement from them in January 2018. I've asked for a statement and Vodacom responded to say I must contact their Legal Department. I've asked their Legal Department in September 2018 and now I'm still waiting for a statement. According to my own calculations my debt is paid off 2 months ago but MBDINC is still deducting the money. MBDINC is not responding to my queries and neither is Vodacom???? Can VODACOM please send me a statement!!!???