Gold clad is where gold is bonded to another metal, similar to gold plating. This would mean that the coins are not 100% gold.
They are legal tender probably in some tiny country in Africa or South America. If you could read the small print at the bottom of your TV, that's what you would find, a disclaimer stating where they are legal tender flashed on the screen for two seconds.
Call the 800 number that is advertised and ask those same questions. Ask them what percent of the coin is gold and what country it is considered legal tender. By law, they have to answer you truthfully!
If my answer was helpful, please click the Accept button. If not, please click Reply.