Fibre not working

I need assistance. We have installed fibre on the 21/05/2020. After going back and forth our internet was finally active. But we could only use the internet fully on Monday 01/06/2020 for half a day. We have wasted so much airtime holding on for a consultant and every time we get cut off. We have spoken to an consultant on Tuesday and it only worked for 10 minutes. I can only receive WhatsApp. We cannot access the internet or browse the internet or Facebook and I cannot download anything. The line speed says excellent and it normally runs on 121 mbs. See attached screenshot. Please assist as we already reset router and switch it off and on. We are on a 12 month contract and cannot go forward with it and pay so much money for no internet service. I am getting frustrated as we are paying for something that is useless.