As a Turkish citizen I can say that the real inflation is much higher than 17% but they are trying to make it look lower by changing the formula constantly so they don't have to raise government employee's salaries so much. I would say the real inflation is closer to 50%.
There is nothing wrong with charging different prices for different countries. The problem is I'm living in Turkey most of the time and my bank is a Turkish bank but I have been charged in Polish Zloty all these time. I don't think they would let me pay less if I created my account in a country 2 years ago where price was 2,5 times cheaper than my original country.
I don't think using "the wrong letters" is illegal in the US. What I've meant was it is as wrong as claiming the usage of "the wrong letters" is illegal in the US.
The letter Q was never illegal in Turkey. It was just not allowed to be used in names of people/companies etc. due to the fact that it is not in Turkish alphabet.