Installation nightmare

I'm very disappointed that the whole business does not a have customer contact number except for communication via WhatsApp. I made a payment on 29th June and received a call where it was found the address was incorrect. I was informed the address will be updated. Today (02 July) at 08:05 I called Vuma and Wandile advised he would escalate my query and this should be sorted. I reached out to SADV as i found out they're my service provider and sales person called me and advised me my WhatsApp chat would be transferred to the Customer Services department. I have been texting by myself as it seems is a graveyard. I work in the social media department for a Huge company and this is NOT how clients should be treated. Either a manager calls me with a time of fitment or I will look for better providers. I'm very disappointed as I was promised 24-48 hours fitment and it's almost the end of a 3rd day.