Vodacoms MDB

I contacted MBD (Munnik Basson Dagama) on multiple occasions asking for a letter of clearance. Firts time I finally went through the consulted assured me to send the clearance letter after i email my proof of payment. 2 weeks later still not clarance letter. I called them again and was told i still owe them but they can't see how much, I feel like Vodacom has chosen the bottom of the barrel when handing over their accounts.