Require a line for my Mweb ADSL Router

Goodday<br> I contacted the Telkom call centre on 22/07/2015 on nr:10210 and enquire about a telkom rental line as I need to install a ADSL Mweb router. Spoke to Janet who informed my about the rental price of R189-. I ask her if there is any other cost involved eg: installation which she than again inform yes that fee is R624. I request that application be done, when processing the application Janet informed about a deposit of R700 I need to pay as my credit score is below 600 and it need to be above 700, and also that its the first time I made use of Telkom. I informed Janet, I have a pre-paid Telkom line at my parents home which I put in my name as they are pensioners with no income several years ago, which she confirm reflect. I enquire on how they calculate this score, as I have 2 retail accounts, Wesbank, cellphone contract account and credit card, and being in the financial industry know that you need retail accounts to up you credit score. I ask for explanation and for her supervisor/team leader to contact myself with the explanation on credit score calculation and for the R700 deposit to be waived as according to me i am no risk. No reply to date. Matter rather urgent.