Ajio — Not refunding the amount for the product which is not delivered

Order number FL[protected]

The product was supposed to be deliver by 26th of November but since 19th there was no status change on the website so I called the customer service after 26th they asked me to wait till 2nd then till 6th and told me the product cannot be delivered and now they are not refunding the amount. I have send so many emails and called customer service they keep on giving me further dates and now they disconnect my calls after I tell them my problem