Add text to shipping page

[JAndersonCT]

So today I had a customer that was upset that her package did not arrive in 2 days.  She lives one state away an lo and behold the shopping cart tells her first class gets there in 2 days.  How can I add text to say that shipping times are approximate?  She wants me to refund it with no return of product because it was a gift. So now Im out money because Shopify posts times on the shipping selections.

Please help

[partsNWT]

did you ever figure this out. We have our priority saying one day but often that doesn't happen. they don't blame post office. i want to add a disclaimer that no shipping may take longer due to covid crisis. We have this on our homepage but no where else .

Scott