Evasive call centre, social media, email

Ok, the tech, when he came, did fix my fibre, but they have, according to the call centre a 24 to 36 hour time period in which they will fix your fibre (which only broke because of the poor installation they did in the first place, this according to their own tech). This is too long and to trap people at a particular location because they cannot say when the tech will be there is not good enough. And does prioritising your repair actually make it happen any quicker - it does not appear so. The call centre, social media and email contacts are all completely evasive and cannot answer any direct questions. They read off a poorly written script. One of the most annoying monopolies to deal with.