Here is a personal anecdote. Before finishing university, I got a job offer by a very prestigious international company. I accepted, and decided to register myself as a freelancer so that I pay my respective taxes.
But... they would not let me do that. The person at the freelancer (TEVE) office, explained to me, that since I did not finish my university I was not allowed to perform that work, remotely, for a foreign company. Doing so, would mean that I am stealing job opportunities from people like his son (yup), who finished a similar school and now are unemployed.
I went again, and again, and I was shooed away with a similar excuses. Even though according to government websites my case was legit, and there was a special clause for people working for foreign companies. But apparently something written online at a .gov website doesn't account to anything - the people at the kiosks know better. Finally, months later, I decided to hire an accountant.
It so just happened that they knew her personally. I got my license less than a week later. After 4 months of stress, being told to my face I am breaking the law and I am stealing their sons jobs, I finally had my own freelancer company registered to my name. I joked that I should register as a heart surgeon instead, it seemed that with knowing the right people it was definitely possible.
....
When I was leaving the country to come to the states, I went to the same office to de-register. Apparently the phone lines where down, but the person there wrote down my name and swore they would de-register me. Three and a half months later, and while I already had moved to the states, a letter that fined me for not paying taxes and for not paying my company fees for the last 3 months, was delivered to my parents house. Apparently I was still registered as a company owner. Oops. My dad for some reason paid that fine and didn't tell me until months later, to not "stress me".
Fucking hell Greece. I could go on and on....