Yep, TS. The call is yours but better don't burn the bridges by skipping your boss and direct go to HR (if you still want to remain in the same line).

Whether they call you to have a nice coffee chat is up to them. If they really call you in (and counter-offer), then mai show that you are really valuable to the company lor.

Then if you really persist, mai die die also say NO... but do it nicely la...
Like cantonese saying, fan si lau yat sin, yat hau hoe sheung kin (meaning everytime leave a line/space/don't go too far, next time easy to talk)