The only banner-towing establishment I've ever seen advertising, is THE one to stay away from.
Apparently they're selling "banner towing endorsement", when there is no such thing (as far as I can remember).
Anyway,....a lot of people have paid money up-front, on the promise of a job at the end of the course. Only to be left high`nŽdry once the course is over.
Thou haveth been warned.