Unfortunately this happens too often with VM. They use 3rd party contractors for this sort of work, and it can drag on at times. Usual advice would be to have kept your Sky running until after VM was installed and for the 14 day cooling of period, but that's not much consolation now.
Have you considered a 4/5G 30 day contract Router? I think 3 are doing one at the moment for a reasonable cost and it will get you over the waiting period.
If you wait here a day or two a VM Mod will be along to discuss.
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