Apple started the battery replacement program for non-touch 13-inch MacBook pro free of cost because the company committed that the small number of computer manufactured between oct 2016 and oct 2017 have faulty part/components which causes the battery to expand.
This is the free program for the buyer because this was the falt of the company to give customers the faulty product. buyer can visit any authorized store for battery replacement and they will handle all stuff. if the user already replaced their battery spending their own money then, then they can mail to the apple repair center for the refund.
This replacement only has done if your MacBook Pro(13 inches) has qualified, like if your MacBook battery gets to expand. if this condition matches with your MacBook Pro then you will able to replace your battery for free using this program.
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