National Payments Corporation of India [NPCI] — on line payment made for mobile but site not opening and no communication

Sir,
On 20/04/2020 on line from mi-home.in site i ordered a mi note 9 pro mobile and paid through e payment from my sbi savings bank account rs 15999/-the transaction ref as per my bank account is[protected]igaimmhzh1. The payment is credited to avenues india pvt. Ltd.
But till date my mobile not reached to me and the above site is not opening again there is no communication to me from the company in this regard.
Hence i presume that it is a fake site and my money is taken by him. Now i am preparing to file an f. I. R.in cyber police, please do the needful at earliest.