Took 2 new data lines over billed from 1st month total unhappy about it

<p>Hi there. I took 2 new data lines from TELKOM in 15th Feb this year and on their pamphlets or the lady who was helping me didn't tell any hidden cost etc but now end of March I got my statement I got shocked to see that instead of paying 300 they are charging me 1096 for one and half months. When I phoned the customer care they told me that your line was an open line and that's why it's so much I have to pay but I told the guy when I was signing the contract I made sure I told the lady that please put my monthly limit to minimum R1. So wen I finish the data then the line must be closed for that month and the lady told me she has done that. But the customers care guy told me even if I told this on the time of signing contract the implementation of that will be start only next month. But my question is why didn't this was explained to me . I am totally unhappy about all this and not going to pay this amount. </p>