GHTK scam

This phone number has GHTK information leaked, so they know I bought something. They called about delivery, but I wasn't home, so I transferred the money. Then they called back saying I gave the wrong insurance account number and that I have to pay 3.5 million VND monthly. That's when I realized it was a scam. I told them to take 600k VND and stop trying to scam me further. Then they cursed and hung up.