My phone isn't showing the same data usage as on my online account

[Hadza2]

I keep getting SMS texts saying I've used 95% of my data.

Samsung Galaxy A8 is showing 557 MB of mobile data usage out of 2 GB.  (the 2GB is from an older previous add-on, but my phone is still showing it)

But my regular account plan is for 250 MB. I also recently did an add-on of 200 MB a few days ago.

Everything looks correct on my online account.  However, the data use numbers on my phone don't make any sense.

How do I correct the data info on my phone?

[Hadza2]

Thanks to everyone who replied. Very helpful.

[mojorising]

The billing cycle changes by a day or 2, so you're going to always have to change it on your phone when you start a new billing period so it matches the 30 day period that shows on your account.

[Hadza2]

Yeah, I think the billing cycle is off.  I've never changed it though. Does the billing cycle change?  If so why?

[TheSterlinger]

Even with the 30 day period it will still be off

[TheSterlinger]

Public mobile and your phone measures the data differently for reasons I have no idea. They just do.

[Ballantina]

Settings- connections- data usage- billing cycle and data warning- data warning-

It will open to allow you to set what you want. When I had 10GB, I set mine to 5GB, it’s your preference 😊

[mojorising]

Always go by what your data shows on your account page, not your phone as that is the true usage info.

Is your phone set with your current 30 day pay period? That could be why it's off.