American Reading Glasses / R.G.C.A.

Due to website failure, I was sent ordersSeller refused to refund shipping on orders returnedI placed an order for reading glasses on the websiteAfter completing the order, my screen went blankI got no confirmation of the purchase and no email confirming the orderI tried a second time and the same thing happenedI emailed the companyresponded and told me to be sure the diopter fields were filled inWhen I tried a third time, I got an immediate confirmation and an email from the company telling me the order was being processedAlso, I paid extra for faster delivery, but this company took over days to get the order to the
I received all orders in the mailThe seller has refused to refund shipping charges for the orders I returned due to malfunction of their website
I contacted the seller after the second failed attempt to purchase and made corrections he suggested to have 3rd order submitted
I paid extra for faster delivery and the seller took over days to ship order
I am asking for a refund of $($x 2) for the priority air mail I was charged
I have emails from Mitchell and tracking numbers from the USPS to prove