Better read the fine print
Was offered $10 bonus for adding $100 in gift cards.  Did it once, received bonus.  Checked balance and it increased $110.  Indicated I could do the process again, so I did.  Checked gift card balance again, it only went up an additional $100.  Guess what - no bonus.  Seems you can only get the bonus once.  I feel misled by Amazon!
Rating: 3 stars