Flipkart — Wring size product, still no resolution

Ordered 2 max baby boy ankle length socks of 6-12 months size but both socks of 2-4 years delivered. I instantly raised complaint reaching customer care, they created one replacement and others return complaint as available then but replacement and return requests of both item rejected. I have been calling them since 31 july 2022, also raising written complaint along with photo but they simply send me “issue resolved “ message and close complaint.
As product is “not as per description “ I want resolution of my complaint not messages @Flipkart