Some shops don't ship your order for 2-3 days after you place it. Some places don't ship to APOs or they won't ship CODs. Some have the default as 3 day select and they charge a ton for shipping. We ship APOs, FPOs, and any other POs you can come up with. If you don't like something some places won't let you return a racquet if you hit with it.
None give credit for shipping charges.
The length of time allowed was generally 30 days. I'm not going to charge you to open a returned box and put it back on my shelf. I created my closet section for these slightly used racquets. Somebody else will benefit and everyone will be happy. Price ranges are all over the place.