Fire Boltt — Delay in refund

Address:	Chack Abdul Wahid Majhauliya Road Muzaffarpur
Website:	www.fireboltt.com

Hey my name is Aman Raj and I ordered two smart watches from fireboltt on 4 March one ff them got delivered and one of them didn't get delivered to me then I talked with their customer support executive and they said that due to stock issue your watch has been cancelled and your money will me get refunded in 7 to 10 days but it's been one and half month and still when I call them they say me that we have highlighted your complain, forwarded your complain to higher authorities, etc. But at the same time when my watch got cancelled the watch was still available to purchase from the website and some people who were living in my building have ordered after my ordered date got their watches delivered. So 1st point my issue is that if the watch was not available in stock, then why the watch was available for purchase on the website.
2nd if the watch got cancelled then without my permission how they cancelled my watch.
Please help me regarding this.