How do I stop this pornographic text solicitation when the sender's number constantly morphs?  I started receiving texts from "gotoam.com," which is an Adult dating" site., about two weeks ago.  The number starts with 1-410- and has gone from 0020 to 0040 with each send, so it is impossible to block from my end.

cant stop it

This person keeps txting me!!! I know its a dude!!!!!!