Alright !
I just placed two separate orders on myntra and cancelled them now. One directly from chrome browser and paid using payzapp and other by opening myntra in payzapp and paid using payzapp. First transaction has 'WWWMYNTR9655017' as merchant name in Sms and 'PAY*WWW MYNTRA COM' in email while the second one has 'WWWMYNTR9579842' in Sms and 'MYNTRA VIA SMARTBUY' in email.
Obviously the second one will get accelerated points.
Now I have to cancel 6000 worth of clothes ordered.
Not sure how I got the first merchant charged when I placed my order the second way.
Thank you all 🙏🏻