I made a purchase this week from Notability, it was priced at R$ 32.90. But I first received a charge of R$ 3.00 and only sometime later (it showed PENDING when I looked into past purchases) for the full price of the app (this is what my credit card is saying). I calculated the IOF tax from 32.90 (6.38%) and still does not account for this initial charge (6.38% of 32.90 = 2.09). I am going to make a complaint next week.
I think this charge is illegal under the laws here, because I was not informed in advance. I am seeing the full price for the app is US$ 9.99, so if US$ 1 = 3.20, it should be equal to R$ 31.96. I may even accept a small difference, but not R$ 3.00. It was even reported by local news that we wouldn't be charged anymore for the IOF (6.38%).
It's precisely due to things like this that no one takes this country seriously. I don't blame Apple for making such changes, thanks to a government that is only concerned about exploiting everyone. But do things right, under the Consumer Defense Code (Federal Law 8.078):
SECTION III
Advertising
Art. 36. Publicity must be shown in such way that the consumer will easily and immediately identify it as such.
Sole paragraph. A supplier, in the advertising campaigns of its products and services, will make any documents that give basis to the technical and scientific information displayed available upon request.
Art. 37. Any misleading or abusive advertising campaigns are prohibited.
§ 1. Any information or public communication that is entirely or partially false or is in anyway, even through omission, capable of inducing the consumer to make a mistake regarding the nature, characteristics, quality, quantity, properties, origin, price, and any other information about products and services will be considered misleading.
§ 3. In this Code, misleading information includes failure to mention essential information about the product or service.