It is no wonder why some banks do not want to keep the public about their interest rates. Usually the reason is because the interest rates offered are not competitive, so the ignorance of the customer is in their interest. So not worth it and published. A speech deemed unworthy and the interest rates - Fireworks to 7% which is usually the real rate is not reached even half the advertiser. But if there is a competing product (like the Aspis Income Plus) was published, some risking inaccuracy and many can benefit from it.