mirrorstore As you can see, the common person's understanding of "1 to 1 exchange" is different from yours. You have gained an unfair advantage by advertising "1 to 1 exchange" without actually honoring it.

It is hard to swallow that you need to exchange the defective item with China when you have stock readily available in Malaysia.

It is with you that your customer deals with, not your supplier in China.

I will spare you the dispute tag provided that you:
1) Provide a quick resolution to this problem
2) Remove your claim of "1 to 1 exchange"
3) Clarify your warranty terms to avoid future disputes.