I sent an SMS text instead of using iMessage to a family member when I had bad cell service about a week ago. I have FaceTime-d with them since and even deleted and recreated their contact info, but my iPhone and MacBook still keeps sending SMS texts to this one specific phone number. It is not doing this for anyone else that is sending my family member iMessages, so I know it's on my end.
I've tried logging out of iCloud on my phone and MacBook and turned "Send as SMS" on and off. I have even tried deleting the contact, and re-creating it.
What am I doing wrong?