Jiomart — Product not getting delivered, and they keep extending the delivery by 1 day

Address:

Jiomart.com

[protected]W- order number.
I ordered a laptop from jio mart and the delivery date was shown as 24th may, now it keeps getting extended by 1 day, and no response from the customer care or on email. I have already paid for the laptop and it is extremely unprofessional of jiomart to handle things like this.