I NEED HELP PLEASE

I have sent BTC to an address and when the payment was confirmed, magically the address was different. The vendor ask me for Screenshot of the payment, and of couse in the screenshot appears the different adress. How is it possible? I put the address right, a friend and I reviewed it several times. Magically changed when payment was confirmed
Something like this just happened to me, I sent $ 160 to one address and then it was another

Sounds like you have malware of some sort. They can alter addresses when you copy and paste on windows. If its a mobile app wallet then check its an official one.

Verify if your not hacked or something like that.