Misdirected Text Messages

The other day I sent a text message to my friend Alicia. I received a
message back from someone else named Alicia who said she gets about
4000 misdirected messages a month, many for an "Alicia" (not her.)
She said all the "text are from vtext.com," whatever that means.
Any ideas what is going on? I could understand why certain
numbers are erroneously crossing to her number, but what is the Alicia
thing. Contact should be made using the number, not the name. When I
send to my Alicia, my phone simply cross references to her number in
the address book as I understand it. Since it's all done with numbers,
how could one Alicia erroneously cross to another except by weird
coincidence.
This all seems nuts to me.
Thanks for help.
Frank