DMart — wrong material received and giving refund

I have ordered some items from dmart through its online service on 28/04/2020. This is the forth time i have ordered and every time some items received instead of other but can be used/serve the purpose. But on 29/04/20 i have received 05 packets of kasturi methi (Leaf) costing rs. 145/- instead of my order of 02 packets of 500 gms of methi (Grain). I have no use of this methi leaf hence i immediately told the delivery boy to change the same as i have paid the bill amount before opening the boxes. The delivery boy asked me to contact the customer care people and they will change the same immediately. I then contacted customer care of dmart sangath mall – ii, sabarmati through their number[protected] from where the material is received, but the customer care person taken this thing very easily and asked me to come after the lockdown period. This is not the proper way to handle a customer who has received wrong item and ask him to contact after lockdown and it is also not clear when the lockdown will open. I told him that i will refer this complaint through email to dmart customer care, hearing this he asked me to do so.
I immediately made a complaint to d mart customer care [protected]@dmart.in and they have replied that i have to contact their bombay customer care number[protected] and i tried so many times but this number was not reachable. Today i got message from this number that any complaint i have to contact their customer care through email.
Now i don’t know to whom i contact for refund.

Narayanan p poduval
G-13, park avenue,
New c. G. Road,
Chandkheda,
Ahmedabad-382424.
Phone – [protected].

Order no. 12636283 dtd. 28/04/2020

Bill no.[protected] dtd. 29/04/2020