Yello data ...lies.. no stars should be given

<p>I took a contract for data from yello data . And when they phoned me the contract was for 1gig for R99 so i took the contract and asked them if they could cap the account not to exceed the 1 gig/R99 per month so they said said yes and it was all recorded now i got billed for R494.00 from yello data. So could you please assist me in this matter.</p>