Moving home to listed building - can I cancel?

Me and my partner are (hopefully!) completing the purchase of a Grade II Listed Building soon. When we were shown around we noticed there was no broadband box for virgin inside, although according to the virgin website we can get a deal with them.

we’re midway through a 2 year deal with virgin for broadband, but this means that when we move we will have to apply for LBC for any works to install the box - which can take time, time we won’t have. Would this be a justification to cancel our contract without recourse (similar to when people move home but Virgin can’t provide in their area)