My mum has a £5 big bundle but I have to top up £10.00 every month now, which lasts a month.

[NicD1]

Why am I topping my mums £5 big bundle every month with £10.00 that only lasts a month. Help 

[MI5]

@NicD1 

Your Mum must be using the left over £5 credit on something not included in allowances.

Guide to allowances here Guide: Your Allowances - what is and isn't included 

[NicD1]

checked and she ain’t 🤔

[MI5 · Accepted solution]

@NicD1 

You'll need to contact O2 to find out where the credit is going then.

Call 4445 or message O2 on Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG) , they should be able to help you with this
It could be a premium subscription that needs dealing with.

Guide: Have you fallen for or been conned into a premium rate scam? What to do next