I am trying to buy a Dominos Giftcard off e-gifter its forcing me to use Coinbase to buy the giftcard. It also wants to deduct money off my account everyday in order to buy the giftcard. What the hell is this?

https://gyazo.com/a888877d3f3921210e6ca9ea536d88ab

Wtf?

This is a one time thing I am not planning on buying from e-gifter with coinbase after I purchase this giftcard. Should I set it to zero?