Don't mess with Iggy Azalea.

On Sunday, the 24-year-old singer took to Twitter after a Papa John's pizza deliveryman apparently handed out her phone number to friends and family members. 

@PapaJohns I ordered a cheese pizza but instead I got tons of calls and messages like this one.

— IGGY AZALEA (@IGGYAZALEA) February 8, 2015

Papa John's quickly responded:

@iggyazalea #We should have known better. Customer and employee privacy is important to us. Please don’t #bounce us!

— Papa John's Pizza (@PapaJohns) February 9, 2015

But Azalea wasn't having it.

@PapaJohns I don't think data breach is funny. I expect you to contact me to explain how you are going to rectify your breach

— IGGY AZALEA (@IGGYAZALEA) February 9, 2015

And she's not kidding around.

@PapaJohns of my personal information in a satisfactory and professional way or lawsuit will be filed.

— IGGY AZALEA (@IGGYAZALEA) February 9, 2015

Azalea hasn't let up on the pizza chain's snafu.

. @PapaJohns was my favorite pizza but the drivers they use give out your personal phone number to their family members.

— IGGY AZALEA (@IGGYAZALEA) February 8, 2015

Now, it's a full-out war.

And the supervisors at @PapaJohns refuse to send pictures of their employess so you can identify who it is that steals your information

— IGGY AZALEA (@IGGYAZALEA) February 8, 2015

You know, to protect their privacy... Too bad they don't value the privacy of their customers also. #DamnShame

— IGGY AZALEA (@IGGYAZALEA) February 8, 2015

The only winner here is DiGiorno's frozen pizza.

.@IGGYAZALEA delivery. smh

— DiGiorno Pizza (@DiGiornoPizza) February 9, 2015

Your move, Papa John's.

We do love that Azalea ordered pizza ahead of wearing this form-fitting blue dress later Sunday at the Grammy Awards.

NOW WATCH: Here's what everyone gets wrong about the WWE being fake

See Also:

Iggy Azalea is fuming on Twitter after Papa John's jokey response to her privacy breachPeople are not happy with the racy Sports Illustrated swimsuit issue cover11 things to know about the first plus-size Sports Illustrated swimsuit model

SEE ALSO: The most ridiculous outfits at Sunday's Grammy Awards