Vision Express — Harassment

Address:

Mumbai

I'm an optometrist and I submitted my CV to vision express which included my personal number. The HR (Mr. Bhavin mehta) of your company misused my number after his resignation. He texted me and tried to flirt with me on whatsapp. I politely rejected all his hints.
Was it fair? I gave my number to your company with full trust and in hopes of getting a future. Is this how the ex HR of your company should use it? Where is my safety. Should I really trust your company in future?