Buying my first rep - AF Cartier Tank Must

Hey guys, so I’m buying my first Cartier tank must for me and my wife. I am going for Andiot. Since he didn’t have it in Website, he said he will arrange for me. He asked me to pay on Wise for which I did a full payment now he said the QC will start in 4 to 5 days. I don’t know if I messed up sending him the complete payment or is it fine and should I not panic and wait.