Extra amount charged In-App Purchase by apple.

Hi guys,
We implemented 3 consumable product with different price range in our inapp purchase. Like product 1 = $34.99, product 2 = $49.99, product 3 = $59.99. but the issue that we face with our one user is that when he purchase product 1 the apple charge $47.99 amount.
What can be the reason for that bug?
We can't able to find it Any help and solution can be appreciated thanks.
Check your price tier to be sure you selected $34.99.

Extra amount charged In-App Purchase by apple.
 
 
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