What is your return policy on BUY 2 GET 1 FREE or BUY 3 FOR 2 Offer

Return information regarding BUY 2 GET 1 FREE or BUY 3 FOR 2 Offer:
* If all items are returned, a refund will be offered for the amount paid for product (shipping costs are not refundable)
* If partial return results in the order not meeting the BUY 2 GET 1 FREE or BUY 3 FOR 2 Offer requirements, the refund amount will be adjusted accordingly.
For eg, 1. if you purchase 3 items of $50, $60 and $80. Order total is $167 with shipping after the offer is applied. If the customer wishes to return only 1 item worth $50. Then the refund amount should be $167 minus the retail cost of 2 items $80+$60 minus shipping $11+$8+$8 which is $0.
2. if you purchase 3 items of $50, $60 and $80. Order total is $167 with shipping after the offer is applied. If the customer wishes to return only 2 item worth $50 & $60. Then the refund amount should be $167 minus the retail cost of 1 items $80 minus shipping $11+$8+$8 which is $60.
* If you opt for an exchange, this offer will be honoured. If there is a price difference, that will be charged accordingly.