I have 56 unauthorized charges to my Mastercard credit card beginning 5/19/2016 - 06/10/2016, for a total amount of 2,520 PLN (ca. 650 USD). I want these charges looked into and immediatelly reverted back on my credit card. Please find enclosed the detailed specification of your refused charges. My Mastercard is blocked and the sale contracts for 56 issues (if any) are now cancelled and refused (if any).