Why did fail to refund you sometimes?

Why did ARTNINA fail to refund you sometimes?
There are multiples reasons that we fail to refund you in time.

PayPal cases:
If you had contacted PayPal to open a dispute or file a claim of your order, then the order transaction is being reviewed by PayPal which makes the funds not available. Once the case is closed, we can manage to issue the refund to your account.

Credit card chargeback:
If you had asked your credit card company to stop the payment before contacting us, we can do nothing during their investigation but wait until the case is closed.

Credit card issues:
Sometimes customers don't use the original credit card or have changed the card, which will lead to refund failure. But we will ask for your PayPal account to send the amount.

Transaction overdue:
If you ask for the refund exceed 180 days from the order payment date, we will have to ask our PayPal account manager to help issue the refund, which will cause about 1 week delay compare to our normal process.