Myntra.com — I'm complaining about the incomplete package that I received.

On 11th December 2021 I received my package which was supposed to have three items in it(two clothing items and one body lotion)...however I received the package which only contained the clothes and not the body lotion but I already paid for the items including the missing body lotion... also i received a message from Myntra that the items have been delivered including the missing body lotion...so I called the delivery agent to check if there was any mistake but he claimed that there was only one package for me which he had already delivered...so than i filed a complaint and received a message by Myntra that they will update me about it however its been 3 days already and I have not yet received any update...Its a bit upsetting because I have been shopping items from Myntra for years now but the way they deal with costumers issues is very disappointing.