You must take up the issue with the seller from which you purchased the system.  
Hi,I purchased a Dell Inspiron G15 5511 laptop with 32GB Ram (single channel) and 2TB SSD. I found out on Dell website the original configuration for this laptop with the service Tag is not matching ( 16GB Ram (dual channel 2*8) and 512GB SSD).  So I assume someone opened the laptop and upgrade it? Does this void the warranty of the laptop?
Inspiron G15 5511, warranty issue