You have a couple of options to look for the right service for you.
Click on the 'Pay Here' tab next to the 'Home' tab on the top of the page. In the 'Pay Here' page you will see the 'All Shops' drop-down menu and you can choose the right service you wish to pay from there.
There is also a search facility on the page, for example if you type 'Council Tax' into the search box the option for paying Council Tax will appear