Mconnekt non existing service

I am unable to get hold of anyone in the business. I have drove to 86 John Vorster Rd, Randpark Ridge, Randburg, 2169 as shown on google and unable to find this place. I have a registered fibre service with them and unable to cancel. They have a whatsapp support service ***. Is there anyone that can help with this? Even if i have to go the legal route if need be.