softvity com - web developer did not complete the project and no service after full payment

Dear Madam/Sir, Miss Ritu from www.softvity.com (Website Development Agency) contacted me over phone on **th oct ****. She said that premium website with premium support of ** Hours for one year will cost Rs ****. I told her that I already have domain name and hosting account, then she offered me e commerce website with premium support as above in just Rs **** for me. After discussions and basic enquiry in coming days, I paid Rs **** on **nd oct **** to Softvity via google pay for developing the website. Ritu assured me to complete the work within a week, however basic structure of the website was made live on *st no ****. Meanwhile, upon request of Softvity, I made a balance payment of Rs ****/- on *st Nov on her request. Once the website was live i was unable to open in mobile(portrait) view which she said will take care of, then she contacted me to atstart payment gateway since than she is unresponsive on my emails and calls, I am trying to contact with Ritu & Softvity team for customization of my website that is required to run the website. However, they aren’t taking it seriously and services are not being provided as per their assurance. They only designed basic website, i had to make changes in header and added important pages on slides of the website. This is quite frustrating that, initially Ritu told me that www.softvity.com will give premium support of ** hours for one year for my website www.metawallsdecor.com and now I am stuct without any payment gateway on my website and without proper optimization of my website they stopped giving customer support. They even stopped listening to me and replying to my emails and messages. I also asked them to provide registered customer support number for generating ticket number, however they didn't provide the same and told that 'You can contact on same WhatsApp number'. All my discussions were made with www.softvity.com via WhatsApp/phone/Gmail. WhatsApp Nos of softvity are **********, *********, info@softvity.com. It seems www.softvity.com is a fake website developing agency based on Khorda, Odisha, which first attract the customers by assuring building & hosting premium website with cheap rates & with ** hours support for one year and later on they flew after taking money. I have WhatsApp Chat history and Gmail conversations with www.softvity.com in this regard and can be produced if required. Please help.