Is Lisa a fake or a prostitute?

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Review: A man met a woman on a dating app and he was immediately suspicious because her profile was blank and she spoke bad English. She also talked a lot about money and men buying her things. When she gave him her phone number he tried calling and it was a text only number. He went back to the app to ask and her profile had been deleted. We looked up the number and it is from a service that scammers often use.

Is Lisa a prostitute or a fake?