Cars24 Services — Abusing executive

I asked mail for details required which was sent via personal mail I’d of employee. I didn’t reply and refuse to give details, on which I kept on getting calls and reminders so I shared details on call. Post which I received valuation which I didn’t want to sell my car for so I didn’t take any appointment and closed topic. On which employee of cars 24 replies to same mail with abuse. This is insulting and non Acceptable behaviour of company.