No mate, it is utterly impossible to hide cash payments over a period of years, that is why the world has seen an end to corruption and such things like that, all the people guilty of those actions have long been found and incarcerated
Football managers, members of the house of parliament, the trading floor and stockbroker exchange, and every last business deal these days are all completely clean and above board.
Meanwhile only 24 days till Santa visits your house pulled on his slad by a Reindeer with a nose that glows in the night. Hope you sent your list in to him mate, he is completely real