It is a scam to get more info from you.  They have a machine that just randomly calls a number and they do not know what number they just called and so if you call back to be removed, you are giving them info they did not have.  Don't call, you can try to block, but they have several numbers with several area codes, easier just to ignore and move on and give them no information at all, It is an identity scam

wca offer clearing house....i have gotten a few calls from them, i had them remove my number. I think its one of those co. that buy ur info for mag. sales and stuff like that.

removed my number by calling back, said it was WCA offer clearing house?  No idea what that is.

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Caller ID came up as Debt Relief WCA and they're calling my direction WORK line!! Been harassing moe for months now. Called last month, stopped calling for a few weeks and not back at it again.