Refund not getting back against cancellation of order - advance given

Sir, I am doing industrial electronic business . I have placed order for stabilizer for my client to manufacturer. I have paid Rs.- 75000/- to one of stabilizer manufacturer locally as advance against Rs. 2,20,000+ gst in November -2021. I got the quote for same also. As per his quote payment condition is written that 40% advance and balance against delivery. Delivery period is 4 to 5 weeks which are completed. After placing order my client has cancelled order with me that the charges of stabilizers are too high as compare to market rate. I have tried to convince my client. But he denied and cancelled my order. Because of 15 years of business relation with customer , I have not taken order in a systemic way . Just its a oral confirmation. It happens first time with me for the same client. Then I have cancelled order with my manufacturer immediately and given cancellation by WhatsApp message & informed to manufacturer to refund my money back which I have paid advance. He denies to refund the amount and giving threats to me that what ever you want to do you do, payment will not be return at any cost. Then I have sent one industrialist who is known to me and manufacturer for request to refund the amount. But again vendor has denied to refund the money. Sir, please suggest me what i have to do now legally to get my payment back from him. I have not signed any purchase order and any conditions on paper. In their quotation there is no condition written for cancellation of order. As per his time period 4-5 weeks that also gone.