*** poor service, when this is paramount for my existence for work

My line has been down for 6 days now, I first logged a support call on Mon eve which was then logged on Tues morning, I am still wiithout fibre and today is Sun eve. Whether I request help via Facebook Messenger, WhatsApp or telephonically on a daily basis - I am told someone will contact me and this has been marked as urgent - yet 6 days later still nothing and this is trying with both Supersonic my ISP and the fibre provider Metrofibre. I get told every day that someone will contact me and nothing. They have only reached out to tell me I will get a call to tell me that someone will contact me. What a frustrating exercise - useless, useless, useless. I will fall off my chair once this get resolved once and for all!