I want to cancel now.

I was offered a new router & was advised that the first month is going to be free, I was owing rain R270 something before I took the new router & asked the sales person how am I going to pay that she then advised that on my next payment I can pay altogether my Wi-Fi is still off after I had just paid R700 I’m now asked to make another payment of R174.00 I’m stuck with two routers and I have no idea which one I’m paying for & why am I charged for both? I’ve been waiting for a call back since 1pm & it doesn’t seem I’ll be getting a call