Oyo Total Holidays — refund not received yet

I haven't received the advance payment refund back yet. Now it has been long time they haven't refund the payment
Please look in this matter and refund my money back as soon as possible
I have booked a tour for himichal and the booking was not confirmed and always I was telling that we will change the hotels at every place because they will not provide the dinner
Which I fell they are cheating me and are after my money so then I called the tour and asure me that they will refund my money back which I have sended them as a advance