Couple things grab me on this.
Why would the receipient need to read the T&C's?
Why is it the recipient's problem? If it's a business then claim a refund or if it's second hand you'll get your money back as you'd have paid via a reversible form (surely?)
As others have said, PF48 is the only one that on paper will carry a RIF. It's not hard info to find.
Evri are hit and miss, they carry thousands of parcels, there will always be the odd bad driver or parcel that goes astray, you only hear the horror stories as sent an item and it was delivered isn't gripping.