Amazon India — Amazon Frauded me

Hello Sir,
I want to complaint against amazon company .
I placed two shoes from amazon one is Red Tape Original of size 8 cost Rs.1267 and other is Bond Street by Red Tape of size 10 cost Rs1409 .
I received my second product ( Bond Street by Red Tape ) a day early[protected] but because of size issue i returned it .On another day[protected] there is the delivery of another product ( Red Tape Original ) and return pick up of first shoes ( Bond Street by Red Tape ). Everything goes well yet
After the delivery, i open the box and the same shoes( Bond Street by Red Tape ) which i just returned but of different size is received . then i contact to the customer care and ask them to solve the issue but they ask me to wait for someday while they are investing, i waited but after sometime they told me that i didn't det any refund or replacement on that order although today[protected] they also cancel my return which was already pickup by the courier boy and now i have nothing on paying 2676Rs on amazon
Order ID[protected]
Please sir, Help me
I want my refund I paid the big amount
sove my issue and provide my money.