Terrible service and lack of ownership of providing satisfaction to customer

Terrible service from metrofibre in connecting my domestic site. It has taken more than a week and is still unresolved. The reason given for failure to connect changed numerous time with different "contractors" arriving at my site, each of whom can only perform one task. When connection is not achieved, a different contractor is sent...and the cycle continues. I asked HO reception to put me through to senior management and was told all managers are on leave and was put through to "support". I asked to speak to the most senior person and was told "the supervisor" was on a call and would call me back. I am still waiting. Terrible service, no ownership of solving issues to deliver satisfaction. As a result I allowed my frustration to boil over and I upset some of the agents I spoke to , for which I unreservedly apologise.