"it is illegal to use any currency that is not issued and controlled by a goverment or an authorized entity."
This is true, this is the basic principle of each country about its mass production. Although the use of Bitcoin is prohibited as a means of payment in BOLIVIA, this isn't necessarily can turn off the interests of its citizens against this digital currency and they can still perform its action by investing in the internet. In the internet era, their investors guaranteed will not find any meaningful constraints to deposit the check or withdraw funds online in global scope.