Myntra.com — without delivering the products marked as delivered with fake signature

Address: Nellore, Andhra Pradesh, 524126

At the time of placing my order itself we clearly mentioned and as office address and not to deliver on sunday, contrary to this they even updated as delivered with fake signature with simple a letter that too on office address. How can this e-com delivery boys and myntra can do this extent of fraud without even delivery. This is the first and ever kind of fraud am facing in prepaid delivery. We raised complaint within minutes of delivery but still myntra is working on it even after 4 days