Why did Tomb-Sweeping Day burn paper money issued by Tiandi Bank instead of the People's Bank of China?

What we burn here is the banknotes issued by the Ghost Country Bank, because Tomb-Sweeping Day gave money to the deceased, thinking that if he burned the deceased, he would give the banknotes to the Ghost Country Bank, while the people in China gave it to the Ghost Country's waste paper. As for Tiandi Bank, it is because some people don't know whether the deceased is in the sky or underground (which reflects the confusion of faith), so they have to burn universal tickets.