Supersonic are useless

Why cant you rate a company zero stars. because supersonic need zero stars rating. most useless company ive ever had to deal with. I cancelled my fibre with them and new isp could take over the vumatel line then. i didn't have a choice to stay with them. then they send me a R2600 invoice called Clawback. *** is this. now they have suspended my line for not paying that R2600 and i cant even get hold any anyone at the company. i received my monthly minutes for my cell contract today and they are gone already just hold for these idiots. Can someone please contact me from supersonic.