I received a letter from Citibank letting me know of a 6% APR increase on my MasterCard. 6% that is a big increase! I have had a credit card with them for 7 years, never been late with payment. The reason they gave me was because of the current financial situation. I have 3 other credit cards with 3 other banks and I have not received similar notice from them, at least not yet. Is this the tendency?