Ajio - Return pickup but no refund

I returned the product what I bought from Ajio last month **th march **** .Totally * dress. i raised return for * goods , pickup guy picked up all * items but he came to pickup only * i guess but he asked all * ,so I returned all * items .but I received only * item's (baby dress)refund only not *rd one(jean). The very next day another pickup guy came and ask the *rd item (jean) i explained the guy that i returned it already . Again * days later some other guy came and ask the jeans .that time only i realized the confusion about the first guys mistake. He only picked up wrongly so whatever it is i didn't get refund from company . actually that is their mistake . Ajio pickup guys are really don't know anything and they did not give any receipt for pickup . I mailed everything from first day itself .they asked sorry and advised me to wait up to *rd april no response... Again i mailed and they asked sorry and advised me to wait upto *th april but no response yet .