PharmEasy — Didn't receive half the order and unable to reach out to them

Website: pharmeasy.in

I haven’t received a part of my order yet although delivery being marked as completed by them.

Order placed on
31st July
Order received on
1st August.

Missing items:
Wellman 70+ (Qty : 3)

Wrong items:
Wellwoman 70+ (Qty: 1) instead of Wellwoman 50+
I had ordered 3 boxes out of which 2 is correct and one item is wrong.

I tried to reach out to them through phone but couldn't get connected and through email also there's no response.

So I require the missing items as well as exchange the 1 wrong item. ASAP
Thanks