Unwanted Calls & Texts

I am M25 working in a factory, and out of no where I receive a call. She introduced herself & instantly I realised that she works at the factory as a helper. I couldn’t make sense of the sudden call and decided not to reply and disconnected. Then I received multiple calls from her & didn’t respond to it. After a while, I started receiving multiple text from her. She even tried to video call me. I don’t know what to do! Can anyone please advise.