looks like they want you to declare how many bins you have, and what you use them for... if you have children in Nappies or a person who has to wea nappies, that may help to increase your single bin approval to two or one bigger bin. Ive you have legitimate reason to need more than the alocated 1 bin, then you maybe granted more bins .. But ideally you hould try to improve your recycling and how you pack your bin and how you dispose of your waste to ' compact ' your waste into as few bins as possible... otherwise you could be having to make trips to the local tip/recycling centre