After an oral solicitation for a small business set-asiide service contract estimated to cost ~$3,000.00 ended, I realized that one of the contractors email was entered incorrectly and therefore they did not recieve the RFQ. We only solicited to 3 contractors after recieving confirmation from them that they're interested, only one responded, and as I mentioned only 2 actually recieved the RFQ. I'd like to resolicit to them but I'm struggling to find guidance for that process in the FAR or beyond. Any advice would be greatly appreciated. Thank you.