Bata India — bata white school shoes - wrong size send - return and requesting a refund

I ordered (Order id :[protected] bata school white shoes size 11 on 30 jun 2019 but they send small kids size 11. Immediately i call them and raise the ticket for exchange, they are responded, told me some one will pick up the product but product is not collected.

After few days again i was called and asked for the status for exchange, then only they told me, size is not available, then i raised a request for cancellation.

I called so many times, when ever i am calling / send a mail to them, they are creating new ticket and confirms "some one will pickup the shoes, please allow us 3 days of time to address and resolve the concern raised by you" but after that no response from them

Can you please resolve my refund amount.

Referrence number i received from bata
Your reference number is[protected] dec 2019)
New ticket - bm[protected] jul 2019)
New ticket - bm[protected] jul 2019)
Your reference number is[protected] jul 2019)

Bata customer care numbers :
[protected]
In-customer. [protected]@bata.com

Thank you
Raju