My Limit Service ****

I was automatically transferred from Nashua to Altech Autopage, to complete my last 10 months of my Data Contract. <br> With Nashua i had a limit on my account to ensure the data doesn't go over. When moving to ALtech, it was the first thing i made sure of. I was told by altech that a Limit had been setup as requested, and i received an email confirming this. I still have all the emails as proof. When my contract came to an end, i closed the account, as the Cell C signal was to weak in my area.<br> On my last month of receiving a bill, i get billed R3000. When calling the call center to ask that this error be corrected, as i clearly had an agreement about limiting the account. That call center told me that this was not guaranteed, and kept on going on about the fact that i should of destroyed the SIM card, and that this could be the reason?? Altech failed to properly explain that my limit service was not guaranteed, and cannot charge me this crazy amount without my knowledge or consent to these conditions. I have no existing agreement with Altech, only that my term and conditions should stay unchanged between nashua and Altech. This is a **** & ********.