Wi-Fi internet connection

I have received a horrible service for WI-FI new router connection. I paid Accelerit on 31st of May , they only came mid-July to put router . After making many follow ups . Now the useless router is there no internet. I’m now fighting to get it connected to the internet and already they took money from my account while I’m am not activated , I have spent over R400 on airtime making follow with them and lingtec their fibre supplier . They don’t know what they are doing they are just collecting my money no service , when you call the promise to help it doesn’t happen. Some of the ticket no are 006876 , 870046 , Ref ORD*** .