data allowance not carried over

Hi ​@TJQLJ ,

Thank you for getting in touch, and I understand why this would be confusing. I’m happy to clarify.
 

When a plan is changed, your data allowance resets to the new plan, and any rollover data from your previous plan may not always carry over in full. This can depend on the type of plan change and when it was applied within your billing cycle.

In your case, it sounds like your plan change on 22nd March triggered a reset of your data to the new allowance (around 25GB), which is why the previous balance of 100GB is no longer showing.

Lamiya

No

Hi ​@Yosef, 

It is correct. I can understand why that would be confusing.

With iD Mobile, any unused data can roll over to the next month, however this is based on your previous plan’s allowance and is capped accordingly. When you change your plan, the data allowance updates immediately, and this can affect how much rollover data is applied.

In your case, as the plan was changed around the 22nd March:

• Your new monthly allowance (around 25GB) replaced the previous 100GB plan
• Any rollover applied would be calculated from your previous month’s unused data, but it cannot exceed your new plan’s limits
• The app will then display your new allowance plus any eligible rollover, which is why the total appears lower than before

So while rollover data is included, it doesn’t carry over the full unused amount from a higher plan once you’ve moved to a lower one.

Owethu

Hi there, the main issue is that I did not receive the 40GB that come with the new plan. See the attachment. 

Also i didn't change the plan till the 4/4/2026.

Thr new plan started on the 4/4/2026 that's when I call and sign up however didn't received the 40GB of data 

[IMAGE REMOVED DUE TO PERSONAL INFORMATION BEING DISCLOSED]

Hi ​@Yosef,

I am so sorry to hear that you feel this way, however your data amount was correct. 

If you wish to further dispute this, please contact our customer service team via live chat by clicking here: https://www.idmobile.co.uk/live-chat

Regards,

Gemma M

The iD Mobile Social Media Team