Pavers England — non refund of shoes returned

Address:

Vivanta C 2102 lodha splendour, Thane, Maharashtra, 400607

Sir
I have returned the shoes because they were tight fit within 24 hour in the condition i had received them. I had returned the shoes on 10/5/19
But since then i have contacted the delivery company who confirmed that the shoe reached the vendor on 14/5/19 but no refund has been initiated. I have sent many mails and called their customer support number 100 times but no body picks it up and they never return the call