data usage info

[Anonymous]

Hi I was told that I had  used up 80 percent of my data allowance  the other day

This was a new thing to me as i have not had such a message before and do not know how i managed to use all this data as did not previously  do so .

please help me with this matter

Mary W.

[Anonymous]

also my mobile keeps bleeping before fully charged why is this?

[MI5]

You can look in the settings of your phone to find out which apps have used the most data. If you have a low data allowance you need to turn off mobile data on the phone and just use wifi.
If you use social media apps like Facebook etc, these can use lots of data.

If you have an iPhone check that wifi assist is off in network settings. 
My Sony and Samsung phones  also beep when charged.

[Anonymous]

Also if you have a big data allowance. You may still have a large amount of data left for example. 1GB data 80% left will mean you still have 250mb

[jonsie]

Mnnn... actually used 80% so 20% left so if 1GB allowance would have 200MB left 

[jonsie]

To add, it's highly likely that after the text was sent, the data would update at midnight leaving even less..... 

[MercedesS]

Hello @Anonymous

You can check your data under MyO2 or from your phone:

Checking your balance

To check your Pay As You Go balance:

• Press Hotkey 2 on your mobile phone
• Key *#10# then press the call button
• Dial 4444 for free from your mobile

Remember: you need at least one minute of call time credit to make a call.

You can also read Understanding data to understand where your data has been used.

thanks, @jonsie, @Anonymous and @MI5 for all the help!