You Lack Communication!

This company does not know about communication! Ordered a fibre line through Supersonic. First there was confusion about the line that I had to call and query to resolve on my own. Was advised to wait for installation which takes 7 to 14 working days but Vuma will call to arrange a time with me. Today 02.12.2024, I receive a call from Vuma which I missed as I was on a call. Tried calling the number back, no answer. I thereafter receive an email stating I need to contact the ISP to update my contact details. Called Supersonic and they advised me that Vuma scheduled to install at my premises at 11:30 - WITHOUT INFORMING ME! They then advised that I was not available for the installation and they had contacted me via Phone SMS and Email. LIES! The only email I got was to say that you have received my order! No Schedule email or call! Vuma is this how you communicate with Customers?!