Don't Vuma

I paid for second line in February and they installed the router but it hasn't worked since then til now and they want me to pay again for something I never used ...it's their fault they didn't separate the 2 lines in my premises. Even when I took out the second line I specifically told them that there is a line already in the premises..I just need a second line.....and their customer services horrible it can take up to hours before you can chat to a consultant.