eTemall via Amazon has Wallet phone cases on sale for $4.90 each when you apply promotion code 5MTNXE5 at Checkout. Shipping is free w/ prime.
Available cases ( $4.90 each w/ code 5MTNXE5)
Galaxy J7 prime/J7 2017
rose gold: https://www.amazon.com/dp/B01N11UJ1R/
Galaxy J7 2016
rose gold: https://www.amazon.com/dp/B01GH4MN2U/
black: https://www.amazon.com/dp/B01GH4MGWM/
Galaxy J3 prime/J3 emerge/J3 2017
rose gold: https://www.amazon.com/dp/B06XVPJPN7/
Galaxy J3 2016
rose gold: https://www.amazon.com/dp/B01GC4JHJ2/
red: https://www.amazon.com/dp/B06X95ZK1M/
purple: https://www.amazon.com/dp/B01GC4JIG4/
black: https://www.amazon.com/dp/B01GC4JF76/