Be careful when clicking twice when purchasing coupons with cash!!

Last time, I purchased a convenience store gift card...

I clicked twice because it didn't load quickly, and I ended up purchasing two.

Today...

Buying a hamburger, and I clicked twice again... T_T

Two have been purchased,ㅠㅠ

Fortunately, the expiration date is only a month, so it's a relief.

To prevent mistakes like mine...

Just click once, wait a moment, and go to the coupon box!!

People like me who are impatient tend to click once more and end up buying two itemsㅠㅠㅎㅎㅎ