Yello,
Are you sure they didn't reply :
"Good day. After asking the help of our related product department by contacting the supplier, sorry for any misunderstanding may cause. They confirm that item is as described below. Please kindly note that :
The red wire is the thin one.
The yellow wire is the thick one.
30 amps is roughly what the Rolling Stones take with them on a stadium tour.
They also said they had 24 cases of this Chinese crap to shift .... and if I wanted to see my Christmas pay packet, I'd better start selling them pronto !
Hope the above information would be a little helpful for you. Thanks a lot. Have a nice day.
Sincerely, "
Malc.