When select the shipping method (UK Next Day) by the user, I want to show an information like “Select next day delivery and order before 2pm to receive your order on Wednesday 3 December 2014” below the order total.
Any help would be greatly appreciated..
A link to you site page would have been helpful.
Assuming you are a developer i am giving you a solution on this issue, use this code to add a script to the page
within the function you have to write the code which is in this link. As you can see it adds a dropdown in your case you have to change delete the dropdown from code and use the value of UK NEXT DAY $$ in the script.
https://jsfiddle.net/jno9wzw4/
Let me know it it works for you.