A polite, but factual letter stating the reasons why you are declining the offer. If the salary offer is too low, say so.Submit the completed form, along with any additional documentation, within seven (7) days of the refusal of a job offer or referral. 1. Let your employer know as soon as possible. I asked the employer for a letter simply stating I no longer for them, but they siad they don't do that, They only issue letters of employment verification. Thanks for making the time to talk with me last week. References often make the difference between getting a job offer and receiving a rejection letter. There is a strong presumption of employment at will under Pennsylvania law for all employer-employee relationships. Do not send the confirmation to the UC service center or PA CareerLink® offices. Who can supply a reference?