US mint return question

If i order more than one four coin set, can i return just one of the sets or do all of them have to be returned. Their return policy doesn't clarify.
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<< <i>If, for any reason, you are dissatisfied with your purchase, you may return the entire product for replacement, refund or exchange within 30 days of receiving it. The United States Mint does not accept partial returns, nor does the United States Mint issue partial refunds. For example, if you receive a United States Mint Silver Proof Set™ where one coin is in unacceptable condition, you must return the entire set to receive a refund or replacement.
To return your product, use the reverse side of your packing slip to let us know why you decided to return your item(s) and your desired resolution (replacement, refund, or exchange) for each item. Use the provided return label or address your package to:
FULFILLMENT CENTER
4638 E SHELBY DRIVE SUITE 104
MEMPHIS TN 38118-7411
USA
For your protection, we strongly recommend that you return your order by insured mail and save the receipt for your records. The U.S. Mint is not responsible for lost return shipments. All refunds will be credited in U.S. Dollars.
For more information about returns, replacements, and exchanges, contact our Customer Service at one of the numbers listed below.
Customer Service Numbers:
Within the United States: 1-800-USA-MINT (872-6468)
Speech - Hearing Impaired-TTY: 1-888-321-MINT (6468)
International Customers: 001-202-898-MINT (6468) >>
When they say return entire product I believe they mean the entire set, not the entire order. The customer service number is there for your reference.
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When they say return entire product I believe they mean the entire set, not the entire order. The customer service number is there for your reference. >>
I returned something a few weeks ago. The form had a space for you to write in the number of items returned; in this case, one set.