Vox fibre appalling service

I am now waiting on a Fibre connection for 4 weeks. Vox blamed Openserve for the delay only to find out after much back and forth they didn’t provide the correct address or telephone number to Openserve. I have been told 4 times the matter is being escalated but that is code for nothing will be done. The service is so appalling after I had three years of good service from them. Today Openserve calls me to ask for my address and informs me this will take another week because Vox did not log the enquiry until last week Thursday- 3 weeks after I placed the order.