You are a landlord for an office building. You just received a claim letter from a tenant asking for a refund of $3,000 for a duplicate rent payment in June. You check your records and find out that the June rent was deducted twice from the tenant's bank account. You think this must have been a bank error, but the double amount was transferred to your bank account. Write an adjustment letter to the tenant indicating that you are enclosing a refund check. Write only the body of the letter, omitting the letter addresses, salutation, complimentary close, and enclosure line.