Amazon India — Missing product , refund money

Respected sir,
My name is Dr Darshan J Gandhi, . I have been regular customer of amazon for 10 yrs.
I have ordered on 28th April 5 pc parts. One package gigabyte 3 in 1 was expected to be delivered on 1st may in which I was expecting 1 gigabyte motherboard, 1 SSD card and 1 XPG ram.
Out of that 1 order having name "XPG ADATA XPG Gammix D30 DDR4 16GB (1x16GB) 3200MHz U-DIMM Desktop Memory RAM- AX4U3200316G16A-SR30, "
Is not delivered and it was missing.
I also didn't received hard invoice of this missing RAM order and on while trying to download it from amazon website I GOT IT.I AM ATTACHING IT HEREBY. DETAILS ARE AS FOLLOWS.
Order Number:[protected]
Invoice Number : DEL4-258736
Order Date: 28.04.2025
Invoice Details : HR-DEL[protected]
Invoice Date : 28.04.2025
I made complaint on 1st April regarding this and I was informed that in 2 - 4 days reply would come, after receiving no reply I made 3 calls to special investigation Team and I was denied for help.
My humble request is to help me get this missing RAM. And get me contact details of seller "clicktech retail pvt limited"
Thank you