Am I missing something about their guarantee, or do I have to bitch and moan every time a late package costs me money? Will they limit this, and do they compensate you in some other way?
Yes, No, Yes and No. These and other questions can be answered on their help pages. Open a chat with them and say "Order # xxxx was due xx/xx/xxxx, but has not yet arrived. The shipper is now estimating the due date as xx/xx/xxxx . Would you please issue me a prime extension for the missed guarantee? Thanks so much." Takes about 5 minutes and "earns" me a tax-free $8.25 off of a bill I would otherwise pay.