she didnt get 20grand. maybe if it were a ford commercial or pepsi. but not axe. also, you dont get union rates until you join the union. which you must do union work first to be able to join. unless she got a balance waiver for this being her first in which case she would not have the best deal as far as pay goes. generally they pay a flat rate to non-unions. if she is union, she would have gotten the day rate plus resids above and beyond the first buy. also, cable does not count. they can show it a million times on cable. you dont get a dime in residual money. you only get it for local networks. and it is a declining scale based on buy rates.
most likely, she will make, if she is union and gets decent pay, about 5-7000. but not more than that. it simply will not be shown on major networks during dinner time every night.