Hard to read Codes
These are a good deal if you have 20/20 vision.  The characters i've found after scratching off the back code are hard to decipher.  It takes 5 or 6 tries to get the Uber wallet to accept them sometimes.  There iis no clear way to reach customer support when the code will not take at all.  I cant imagine the frustration someone who is legally blind would have with these.
Rating: 3 stars