Ecom Express — Not sending my pre paid orders

I ordered some products from Smytten
on 12th SEP and paid online but didn't receive any package. As per smytten they have dispatched it and the delivery partner has package and they will deliver it.
Ecom express just called once on Saturday while I was on another call so I couldn't receive it. I tried calling back but it was unreachable and The delivery guy didn't call back and after sometime I received message to reschedule and I rescheduled it for sunday.
But no delivery attempt was made. I tried to get in touch with ecom express but I am unable to reach them through the number on website. Mailed them but no response. So I mailed smytten about it and they told it will be delivered asap
Yesterday I received msg stating you will receive your delivery by today and here is your pin. But delivery guy called and told he went far from my address and will deliver by tomorrow noon i.e today. Whole day passed no one showed up or even bothered to call.