Dineout — refund not done

I paid 2250 approx for the booking at one of the restaurants.. However when i selected dineout pay, it didnt give me date. This is first time i am using the app and was not aware f how to use it. From past 2 days i am following up, they are neither refunding the amount or booking it for the said date. My money is gone and all they say is they are looking into it. I would never recommend this app to anyone.