I signed a form to let Virgin Media connect a cable to my house- should I be concerned?

I was in the middle of looking after kids when a virgin rep asked if it was ok to run a cable to the house from a street pole at later date. I was under pressure & thought, fine no big deal and signed a form & that was it.

Now I’m wondering if I did the right thing? (I don’t have a clue about these things!) Seemed weird after Id have to sign something that I didn‘t read small print and have no copy of but I was a bit frazzled at the time.

They’ve been doing fibre upgrades in area for months and never asked to sign anything when they needed access until now.