Dear

This is the third letter that I have written to you
regarding the status of my account.

I am enclosing copies of my previous letters to avoid
having to set forth the same information for you again.

I am beginning to get quite annoyed by all of the dunning
notices you have been sending to me in error and would
greatly appreciate if someone would straighten out the
problem that exists on your end.

I do understand the difficulty you must have in maintaining
all of your records, but I do believe that if you would
bring my correspondence to the attention of your credit
manager he may decide to suspend the mailing of these
notices to me until this problem is resolved.

Thank you.