does anyone have the same problem?

It first said i need 4000 coins (or somewhere around 4000) to redeem a giftcard, but after i earned some coins, it increased to 12,500 coins for a gift card. Now that ive just checked, it increased to 50,000 coins for one gift card. Is this app a scam or what... one of my family member who also installed this app also had the same issue so it's honestly bothering me.