Poor Service From Vox

My application for fibre was processed on the 10th of December 2021 and promised to be connected immediately, later i received an email stating i will be connected on the 14th January 2022 it was painful but comp****. On the 14th January 2022 they came as they promised, did the installation and i was told that someone from vox will bring the router and connect us. On the 17th January 2022 they brought the router and they couldn't connect us, blamed the line installer. I contacted the line installer because all his details were send to me before the installation, he told me that everything was done correctly on his part. From the 17th of January I've been sent pillar to post by VOX and no one came from VOX to sort this mess and they are keeping quiet. Their service is a pathetic and i dont think they know what they are doing.