You arent paying anything until the day the service is installed and activated and the contract period starts
Is you property a new build estate? If so the builders usually partner with VM or OR to install the infrastructure during the build phase. It would be unusual for them to partner with both - what do the builders have to say about that?
If I were you , dont bother chasing it. Let them play their games and let the installation play out. Do nothing. You pay nothing (£0) until a VM connection is installed and activated. And even from then (if it gets that far) you have 14 days in which to cancel - again with no costs. Or keep it if you like it in those 14 days
As you can connect to OR, do it now and just let the VM install run its course - if it ever happens you will pay nothing until VM's service is installed and operational. When it finally happens, you have 14 days in which to cancel it at no cost to yourself and keep the other service. Or, if VM is working to your satisfaction, keep it and cancel the other service (hence better if you took a 30-day OR contract).
FYI - Re. VM’s installation issues - see John’s excellent précis of the situation in messssage 18 here…https://community.virginmedia.com/t5/QuickStart-set-up-and/Multiple-Failed-Installations-zero-commun...
I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired, 1 WiFi, 1 on PA) Hub5 in modem mode with Apple Airport Extreme Router +2 Airport Express's. On 250Mbps, Talk Anytime Phone, x2 Mobile SIM only iPhones.