There's Bax farm fishery
, just down the road from Sittingbourne.
Not ever fished there myself, but it seems quite well regarded.
Other than that there isn't a great deal of choice in the area as far as I know but, to be honest, I've been a club member now for several Years so haven't really sought out day ticket fishing for a while.
Oh, there is the Teston bridge
fishery, £6.00 for a day but good mixed coarse fishing and convenient parking, nicely constructed swims too