On the left a bottle of soft drink common to countries around the globe. The difference with this one is label shown on the right. A deposit of 5cents(7.5p) has been charged. This applies in several states as listed but in Michigan it is 10cents and CA California is a cash refund.
Maybe this deposit might encourage more re-cycling in the UK. A lot of deposits are collected by homeless people who gather up discarded items thus cleaning the city streets.