Cheque Received

I finally received my cheque for my £150 deposit today, 3 months late.

Three's Deposit Policy

Question

Why does Three tell its customers that any deposits taken will be paid back one year later when, even if they don't "lose" their records of the deposit, they won't pay it back until thirteen months later?

Answer

This gives them an extra month's interest on the deposits that they hold.

A nice little earner for them!