单选题
Dear Mr. Miller,We received your letter requesting help to【K4】______your access code so that you can gain admittance to Chenez's online magazine. We tried to retrieve your lost code yesterday, but unfortunately a system error is preventing us from accessing many of our users' personal information.Our technicians are now trying to fix the problem. We plan to register new usernames and access codes for our subscribers once the repair is finished, as we【K5】______that others have also been lost. We will provide you with a new access code within two days. If you do not receive this information by Friday, please send us an e-mail again, and we will do our best to resolve the matter.To compensate you for the inconvenience, we will give you a free two-month subscription to Chenez. This will take effect immediately after your current subscription ends and will allow you to continue【K6】______our stories. This means your membership will be valid until January ofnext year.We sincerely apologize for the trouble.Respectfully yours,Alice Efron Chenez Magazine Account Manager