Yello data misleading client

Good day <br> <br> A consultant contacted me on the 07/10/2015 by the name if Christina Chetty for the yello data promotion from MTN for the 59rand per month to be debited from my account every month and whereby i will receive 500MB data,after which they send the data to my fone i contacted the call centre on ? ***and i spoke to a lady called Lerato and she informed me that only if you have a top up contract or a normal contract then you are eligible for the yello data deal ,after i have wasted my airtime of R150 rand being on the line with MTN to set up my APN .only to hear i do not qualify for the package deal of R59pm for the 500MB ,after i have confirmed with Christina Chetty that i am indeed prepared she confirmed no problem i can get the package deal ,i feel that i have wasted my time and money for this only to find out that i do not qualify i feel MTN should still give me this deal .this was misleading me .i appreciate your feedback ASAP.