Openserve reaction time??

An order was placed with MWEB with Openserve as the Fibre Provider. After several calls and visits, I had to get the contact details of my neighbor's neighbors to arrange access to their property for access to the box. Finally, the ONT box was installed 2 weeks later to find out that there is an optic issue, and the call was logged to their cables dept. immediately. The only way to contact them was through MWEB, and their only way is to log a call. After several calls and complaints, I was told that the Cables Dept was working on it, and it can take between 6-8 weeks to be resolved. Following a heated call, the same day I was advised the cable would be rectified on the 6th of August (3 weeks after the installation) at 12pm. No show and nobody answer their phones, MWEB is apologetic with no real response. Working from home it has been a huge cost to stay connected through various means and the supposed provider states that they are allowed time to resolve any issues - every time a different interpretation of turn-around times - 2-5 days, or 24-72 hours, or 21 working days??? Not sure what to believe and I was advised that if I cancel, I am liable for the installation cost of something that does not work.