Why cannot I apply for tax refund while the order details page shows that I can receive a tax refund

There may be several reasons for this:

1.Your total refund amount is equal to or less than the bank handling fee of US$30.
Your tax refund amount may be lower or equal to the bank handling fees. Tax refunds are returned via the original payment method (i.e., original payment card). Since wire transfers will be charged a US$30 handling fee by the processing bank, if your refund amount is equal to or less than US$30, the tax refund is unable to return to you.

2. Your tax refund request for one order can only be submitted five times.
If both tax refund requests are rejected, you are unable to submit a tax refund request again.

3.The previous tax refund request has already been processed. (You can view by clicking here);

4.The order has been shipped but the order amount has not yet been paid in full.

5.There is another refund request (e.g., tax refund, order dispute, or charge back) already being processed. Only one refund request can be processed at a time.