MasterCard Customer Service Support 2010-08-24 PO Box 11064, Stn. Centre-Ville Montreal, QC H3C 5A2 Madam, Sir, I recently received a notice that MasterCard intends to impose a new "chip card" card on me. As a result, please reduce my credit limit to three thousand dollars. Given the differences in the risks between the former system and this system, and in particular in who is likely to bear them, this is the most I am willing to risk under the new system. Unless I am wrong in my expectations, and MasterCard is willing to let me continue using traditional stripe-and-signature cards, in which case please notify me of this. [name, address, and card number removed for Web consumption]