False advertising and cheating your customers!

On 6 March last month I signed up for an Online only deal with Telkom for a great R592 per month, Endless Fibre 50/50 on a 12 months contract with free installation and a free router. I wouldn't even have to pay in March and receive my first invoice in April. To my surprise the April invoice amounted to R1344,01. By now I have spoken to the billing department 3 times, the sales department twice, and a person in store. It has taken me a full day and eaten all my minutes. My bill is now reduced to R700-something, and I'm getting different stories every time. I think Telkom has been falsely advertising, but I'm pretty convinced I'm not going to win that 'game'. But even if you, Telkom feel entitled to increase the price tremendously, why does my bill still amount to R700-something, even if I'm told that the price of the fibre that I'm on was increased to R699? Then surely I should not be paying 1 cent more than that! You have cheated me badly and are cheating me badly. Sort it out!!!