Welcome to TinyDeal，
First you could save all the numbers into the phone. When you receive message without the name, you could operate it as follows:
1. Open the message and press the "option” and choose the "use phone"
2. You will see the a numer, press the number and choose the "save to phone"
3. Then save "to phone" and choose "edit" to input the name, press the "option”, choose “done" and press "ok". At last, don’t forget save it, press the "done" and choose "yes". You could see the name of the message.
Any questions please contact us by Customer Service Express: https://help.tinydeal.com/contact-us