Voltas — refrigerator is not working

Address:

DVC MAYAPUR, TALBAGICHA, Paschim Medinipur, West Bengal, 721306

[protected], i purchased the said refrigerator model which is stopped cooling in first door section ie the lower section of the fridge.
As it is under guarantee, so expecting a quick service at the earliest
Model number — voltbek rff 2753dwef
If it is possible, replacement may be done at your end
As you know it's an important part of the daily life