Who pays? Chorus? Landlord? Fencing guy? You (the tenant)?
As your renting it may be difficult. If I was you and as the tenant I would expect the landlord to "make right". Even if it costs him money out of his own pocket. Problem is that many landlords these days are really tight, and they just refuse paying for anything. As he is your new landlord lets just hope that he is a nice guy and he wants to keep a good relationship. If he is not, then its costly time between you and him and the tenancy tribunal (That I am sure you would win, but may take months), Your relationship with landlord will take a knock. If its not too expensive it may pay to just fork out the money yourself to get the cable fixed.
My 2 cents.
I wasn't aware the work was being undertaken, so I'd like to see them try and pin the charges on me lol.
Luckily the new landlord is actually a really nice guy, apart from doing all the overdue maintenance the previous owners hadn't been doing, he brought me a box of beers to apologise for all the noise and hassle of him doing the overdue all the maintenance. He reached out to a connection he has at a certain Chorus subcontractor in my area and got my job priority bumped and the fibre cut was repaired in less than 24 hours, and when I said no huge rush as I'd already grabbed a $60 skinny cellular data pack he told me to take the cost of the data off my next rent payment. So yeah.. he's an absolute top bloke in my books lol.