Glitzonline.in - other item send instead of select item

sir, i purchase a combo pack of shirts from online glitz order no.********** which is delivered on ** june **** . but this company send another shirts which is not selected by me . i make complaint next day on ****** **** and they realize me they will say your order is cancelled and your payments will be refund but they did not refund . i make another call company second no.********** .this also give me same reply and ask bank details Bhim upi details also and send a message .then he told me that forward this message to ********** . this message forward by me * times but he say me that i am not received . now this company does not attempt my call,
please sir, help me for refund my mount as soon as possible