Hmmm. Don't know about the electricity market. But, again in Pakistan's Punjab province, at restaurants, if you pay by cash, sales tax is 19% and if you pay by

Hmmm. Don't know about the electricity market. But, again in Pakistan's Punjab province, at restaurants, if you pay by cash, sales tax is 19% and if you pay by card, sales tax is 5%. It's a method by the state to increase the size of the formal economy.