Donate/Sponsorship This payment form can be used to pay vendor fees, pay a sponsorship or just to simply donate to the event. web-service currently unavailable – please email info@westerndays.org to request a secure payment link Valley Center Western Days< inc. is a 501(c)3 non-profit organization. As a donor/sponsor, you will be supporting the largest community annual event while promoting your business to the residents of Valley Center and Southern California. Sponsorships can be made by check, cash or credit card. Check donations can be mailed to: Valley Center Western Days PO BOX 1781 Valley Center, CA 92082