We help blood centers salvage donors who haven't made additional donations after receiving calls from your telerecruiters. We call non-responding donors with a totally fresh, attention-grabbing message that thanks each donor seven times in a single message for their previous donation. The length of time after the last donation is chosen by each blood center, i.e. 120 or 150 days. Within 13 days, this message typically rescues about 5.9% of donors you are about to lose.