KFdancer and Aquila aren't talking about a refundable security deposit. They are talking about the landlord charging all of the rent in advance, in a lump sum. It is covered by the document you linked to on page 26. Here is your link again:
This is what it says on Page 26:
And I am talking about what the rent is, in regard to the wording to the amenedment to the Housing acts in 2007 (?) with the refundable deposit laws, where a landlord was then required to put the redundable secutiry deposit in one of the 3 schemes. Under that law change: amoung other new requirments: if they they didn't, they are then required to repay the tenant their deposit (even if they are still in the property) and pay a fine to the tenant of 3 times the deposit.
It's why there are court cases about landlords who have taken 6 months rent, but then been taken to court by their tenant where the judges ruled that 5 months should have been put in the deposit schemes; meaning landord was then required to pay to tenant 3 times the amount of the "deposit" (the 5 months rent) as per the housing law amemdments in 2007(?).
If you are not a landlord, then I don't expect you to know these things. For landlords, ignorance is no excuse in the eyes of the law.