HAVANA (AP) — Alejandro Fonseca stood in line for several hours outside a bank in Havana hoping to withdraw Cuban pesos from an ATM, but when it was almost his turn, the cash ran out. He angrily hopped on his electric tricycle and traveled several kilometers to another branch where he finally managed to withdraw some money after wasting the entire morning.

“It shouldn’t be so difficult to get the money you earn by working,” the 23-year-old told The Associated Press in a recent interview.

Fonseca is one of an increasing number of frustrated Cubans who have to grapple with yet another hurdle while navigating the island’s already complicated monetary system — a shortage of cash.

Long queues outside banks and ATM’s in the capital, Havana, and beyond start forming early in the day as people seek cash for routine transactions like buying food and other essentials.