.............

You're texted her to convey your appreciation for the claim.
I'm ok for that.

You're texted her to wish happy birthday
I'm ok for that, in fact I'm happy that you are wishing your friend!

You're texted her to say that you are in MC
I'm ok because she is the boss.

You're texted her asking for belanja makan & thanks for keep her birthday cake for you
I'm ok for that.

But when you call her - 'mummy' in the text (of course in your friendly tone)....I'm in doubt..... and a little bit geli.....