Why same appleid can buy same auto renew annual sku a lot of times before expired?

We have an auto renew annual sku,but we find some user can buy it a lot of times everyday.The response of api verifyReceipt return the json like:

{ "environment":"Production", "receipt": { "receipt_type":"Production", .... "in_app":[ { .... "purchase_date":"2022-09-06 13:24:42 Etc/GMT", "expires_data":"2023-09-06 13:24:42 Etc/GMT" }, { ... "purchase_date":"2022-09-06 14:50:28 Etc/GMT", "expires_data":"2023-09-06 14:50:28 Etc/GMT" }, { ... "purchase_date":"2022-09-06 15:20:10 Etc/GMT", "expires_data":"2023-09-06 15:20:10 Etc/GMT" } ... ] }

As you can see,in_app returns lots of transations with different transaction_id and different purchase_date but same auto renew annual sku, why is that?

If you need the receipt or transaction id , i can give u.

someone help?

Why same appleid can buy same auto renew annual sku a lot of times before expired?
 
 
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