Keep it simple or the app goes haywire

Tried to change shipping back to regular since the shipping options page doesnt list prices (!) and spent the next ten minutes trying to complete my one-item order Bc half of the buttons didnt work. Tried refreshing, closing app, emptying and refilling cart, everything. Finally I emptied cart, signed out, closed app, and went BACK in and started ALL OVER and was able to complete purchase. Annoying!

Jay Mathews about Sam's Club: Pickup & Delivery, v16.10