@LTB-SG Check out the shipping app Easyship - you can chose to include pre-paid returns labels which you are only charged for if they are used. Been a huge help for my business!

Have you tried using any apps like Easyship? @Bushra-K You can display FedEx and UPS rates at checkout! 

@PRANALI25 An app like Easyship lets you display different shipping options at check out depending on speed, price and best value - and can also let them add insurance etc!