Lightning Network solves this, right now the fees are nothing for the security it provides. We lose 10% each year due to inflation anyway so a $1-2 fee on a tx is negligible.
It's all big ruse my friend. They buy out Google Ads (like how Amazon did with "Endgame") but every token promises to be the next big thing.
Think of all these ICOs as Dot Com companies back in the 90s. Everyone's trying to get a piece of the crypto currency world. 90% of your projects will fail, 10% will end up being successes / huge market players.
Make your bets based on real life applications.
Besides.....can't even trust someone who can't spell Ethereum correctly!
Gift cards are based on simplicity - you will have two types of customers
a) Those who actively convert gift cards because they've brought them from another party at a discount b) Those who have them lying around and want to get some $ value
Would consider those two customer scenarios when looking at your verification procedure