BPW uplift Oct 2nd-4th??

Was looking to organise a trip with some mates and these were the dates that worked best but when trying to book online the uplift seems to be greyed out for some reason? Cant find anything online about it. Anyone know why? Will try and ring them tomorrow but thought I’d try here in the meantime.

We tried to book the 2nd a few weeks ago, after a lot of asking why we couldn’t they finally revealed that they are resurfacing the uplift road on those three days