good morning and what is the memo and where can I find it? thank you

Be cautious : This is How i lost #Ton coin

I had some #Ton coin on my #Binanace wallet which I totally forgot. I was just checking once and i saw it. When I transferred it back to exchange i put my address and did not put the memo this is where the problem was. And i transferred it but it did not show up on my exchange wallet. I raised a ticket but I didn’t get it back because there is a minimum dollar threshold if you want it back like it should be above 10 dollars or something. So always read the instructions while transferring #Crypto