Who called from 7864220218

Has texted my number numerous times that I have an "appointment". Do not know the person.

Have gotten several texts from this number saying I have an appointment with Aaron Swisher.  Do not know this person at all.

"Your appt. with Yama Dehqansada is on 04/13/2016 at 04:10 PM. Reply with CONFIRM to confirm."  You'd think a scammer would go w smith or something.

Received a text stating:  "Your appt. with DR. BEERS in on 5/11/2016 at 5:45 PM.  Reply with CONFIRM to Confirm.  This is definately a scam. First , 'Dr. BEERS'? second the phone number is not one in my area related to anyone that I have in my circle.  Third: 'CONFIRM to confirm'? That is like hey it's ok take over my phone. NOT what a SCAM!

Got a text saying: Your appt. with Jorge Calle is on 07/13/2016 at 07:50 AM. Reply with CONFIRM to confirm.
Don't know this person.