Vodacom "4U data promotion" ripoff

Vodacom misrepresents its 4U data promotion to an extend where they ripoff customers to purchase extra airtime. As a loyal vodacom customer I am disappointed at the new promotion offering data "specials" to customers who tops up their airtime balances. On two occasions I topped up my airtime with R100 and then looked at what the *123# data offers are available. A 4GB data offer for 7 days was available costing R149. As soon as I recharged with another R50 the offer was missing. On Tuesday after recharging with another R100, a buy a 2GB for 30 days at R199 was available. When I recharged with another R100 the offer was gone. Vodacom is aware that the customer does not have the available balance and as soon as the customer recharges the offer disappears. This is broad **************** to force the client to recharge extra airtime and then sit with airtime they do not need. NO offer speaks to the balance available. Disappointed!!