Hi,
A bit of a newbie question, but how do you edit the information during checkout in the shipping information screen?
As show below in bold.
…
Fed Ex Economy (3-5 days) - £10.00
Fed Ex 1 Day (1 Day) - £12.00
You can leave us a comment here
Delivery time is calculated in business days.
Products in stock will be sent after the payment is verified. Mail service is responsible for the goods during transportation.
Please, open the package delivered under your order the moment you receive it. If any damage is revealed, make claims against mail service.
Any questions? Contact our Customer Service at 123-12-23
Thank you in advance for your help.
john 
That is set in administration => languages. Just search for:
delivery time
or
any questions
And you will then be able to change the value to whatever you want.
Thanks,
Brandon