VODACOM Commission based untruths.

Why do VODACOM contact customers in the 21/22 month of their contract and offer them an upgrade? Then they charge you not only for the new 24 month upgrade but a pro-rata rate for the remaining 2/3 months of your old remaining contract. This has happened to me despite the consultants telling me otherwise. How much, countrywide are VODACOM making with this ********* practice? Shame on you VODACOM and your consultants you should be disgusted in yourselves!