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I would take them back to the store and ask there what the policy is
Give him a call or have somebody call for you for sure
Costco is an amazing facility. I believe they will change your prescription to the correct one. Good luck!
Eye doctor and eyeglass center should redo both at no charge.
Call optometry dept @ Costco.
If you got the glasses there, it shouldn't be a issue returning them and getting the correct ones.
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