Even though unused coupons meant more money for the program, the coupons had to actually expire before the money could be "reused" for newly issued coupons. Those coupons it did send out were sent via standard mail, rather than first-class mail, as Congress had required in the legislation, but that caused coupons to be delayed up to four weeks.
Even though unused coupons indicated extra funding for the program, they needed to expire before being reissued. Coupons that were distributed were mailed via standard post rather than first-class mail, as required by legislation, which caused a delay of up to four weeks.