Who I have the same questioned this topic

I just found out that the ONLY way to stop getting annoying vtext.com messages from ONE particular number is to change my number! They have blocked the number and yet they keep coming through! When my contract is up, I'm going to have leave verizon. I don't know any other carrier that has this problem, I could be wrong , but I'm fed up! I don't know who this person is, probably some hacker. SMH