Contact Us

Customer Service

Do you need to change your appointment? Have a question about our Donor Rewards program? Can’t find your Donor ID?

Customer service is available: 

9 a.m. to 5 p.m. Monday–Thursday  

9 a.m. to 4 p.m. Friday 

Email: cs@giveblood.org  

Or simply fill out the form below. 

We will respond to your email within 24 hours during regular business hours. 

Call: (713) 791-6373 or +1 (877) 948-5433 toll-free

Donor Advocates 

Do you have questions about your eligibility to give blood? Need more information about a test result?

Donor Advocates to the rescue! Please contact us with any medical questions you may have before, during or after your donation. 

Donor Advocates are available: 

9 a.m. to 5 p.m. Monday–Thursday  

9 a.m. to 4 p.m. Friday 

Email: donoradvocacy@giveblood.org  

We will respond to your email within 24 hours during regular business hours. 

Call: (713) 791-6608 

Suppliers: 

Companies interested in becoming authorized suppliers, please email buyer@giveblood.org for more information.