Instagram Scam

Hello

I decided to gift a customized sketch for a friend who just got married in November. After a long search, I finally found an artist on Instagram who was ready to do it at a lower cost. He agreed to do it for 3k. I paid 2k as advance and then once he messaged me its done I paid the remaining 1k. For shipping, I gave my details but he asked me to pay additional 700 for speed courier service and 301 for safety fee(guarantee for delivering the sketch in one shape). I paid that too. I have been repeatedly asking him to show the pic but so far he hasnt shown it to me. Now he says pays another 1100 which is 1000/ - for address verification and 100/- for processing fee. The 1000/- paid for address verification will be refunded within 24 hours.

I have flatly refused to pay him anything more. I havent heard of anyone paying money for address verification for delivering a sketch.I paid the earlier 4k through GPAY using a QR code. How do I get a refund in this case. Do artists usually ask this kind of money?