Some products can generally be obtained at a slightly lower price in local markets but by paying with cash.

But it's a problem to get cash, you can literally stand in line for a whole day at the bank so you don't get anything!

In the best of cases they only give you 2.000 VES and part of that money is given to you in low denomination bills that the merchants refuse to accept, so you can't even buy 1 kg of rice with that money.