Myntra.com — Company cancel order with discount

I ordered a discounted wax product from Myntra on the 12th july 2022 but the order cancelled by myntra and say that this is fraud order placed so I contacted them they said they will soon update me but after few hours I saw they have resolved my query without any resolutions..just bcoz I have ordered the discounted item they didn't delivered and come with excuses .. then why are they putting the discount coupons show when they are not gonna deliver ..very bad service and this order was my first and last with Myntra this thing i do with my 2nd number and happened same things everytime Myntra cheating with customer.