BAD SERVICE

I took a contract about 3 month ago and my Router was faulty and took it to the shop in Corner CR Swart Drive, Kelvin St, Kempton Park, Johannesburg, 1619 and to date no feedback and i always have to call them to check if my router is back from repairs.

its been over a month and no feedback nothing, even sent an email to Finance to check how they will credit my account, and nothing .THIS IS VERY BAD AND I'M BEYOND ANNOYED WITH THIER SERVICE, I WISH I NEVER TOOK THIS CONTRACT,