Myntra.com — Order not delivered in promise date

Hello...i have placed order 2 kurtas from Myntra on 7th july 2022 and it shows that they will deliver within 16th july...On 10th july it shows that my order reached Guwahati and it takes one day to reach my address..But today its 18th July till i didn't get my order...And after 10july there is no update on tracking...i messaged them but they are not interested to reply...i call them but can't reach to customer care...Now i want my order within 24hrs ... Thanks