SyncUp Kids 2 unable to add contacts

After much research, I see this is an ongoing problem for at least a year. Contacts that are smart phone based cannot be added. Period. I did not have this problem when there was a separate synchup app, so the issue must have started with the migration to T-Life. Honestly, I'm shocked T Mobile hasn't fixed this yet. It's not fair. I was sold a watch that isn't fully functional. I will be asking for a full refund.  Period. The watch in its current form and function does not meet my needs.