Flipkart — Not able to return product

I am Nikhil John. My mother had bought a product which is a white ladies kurta and wasn't satisfied with it. She had bought this product on 2 march 2023, and last return date was 10 march. She tried to return product the very next day, but there was no appropriate option to return the specific product. We tried daily to return the product in return days period. But there was no satisfactory response from their side. Finally she tried to call at customer care and they gave us 14 day extended return period but this never reflected on the app nor there was any sms message about this. The Number which was registered while buying that specific product is [protected]. There is no number of the company to register customer complaints, if any it is not clearly shown to normal users who are not very used to technology.