abdul hakim usta - denying for the refund within the of purchase

Hi have purchase Airgun from the Shop Abdul hakim Usta (D) , **-** Udaipur ****** and they said it can be return and refunded if its suits you hence i have paid the amount of ***** based on the trust on his mouth word and somehow don't want this product so I called them within ** Hrs of purchase but now they are denying to return and refund back , they now change from there commitment and even in the bill no where mentioned as it can not be be refunded , also they refer the the website https://airgunking.com/shipping-delivery-policy/ even here also they mentioned the refund and return policy. but now even there are not picking my calls as well as.