The Texas comptroller's office, on the program's Web site Friday, provided a way for consumers to respond to the program involving more than $20 million in federal stimulus funds.
The Web site says: "All rebate and waitlist reservations have been filled. Thank you for your patience and interest in the Texas Trade Up program. We experienced an unprecedented response. We know many people had trouble getting through. You can provide comments here."
The state agency is investigating what went wrong Wednesday.