Who called from 9018087150

Scam robo call on "how you can improve your credit". Pressed one for operator and asked to be removed.

invalid number,  although shows on ID,    no message left,    attempted to call back got nothing but silence

Called @2:16pm PST. Did not answer. No message. CID=CUSTOMERSERVICE

CANNOT CALL BACK NUMBER, IT DOESNT EXIST? SPAM

Just got a call from number showing: 901-808-7150 about cleaning up your credit score asking me to press # 1 on my phone. I didn't, but at the end of the recording, the line disconnected.