Skip to main content
Solved

Data rollover query

  • April 9, 2026
  • 3 replies
  • 37 views

So with data rollover 

Month one I only used 10 gb of my 40gb allowance 

Month two 30gb was rollovered so I had 70gb 

So Month three I know any unused  data from Month one doesn't rollover but If I haven't used any of my 40gb allowance from Month two does that rollover to Month three? I.e. I would have 80gb 

Best answer by Owethu M

Hi ​@Timbo69,

I’m really sorry for any confusion around data rollover it can be a bit tricky, so I’ll break it down clearly for you.

 

📊 How data rollover works on iD Mobile

Data rollover only applies to unused data from your most recent month, and it can only be carried over once.

 

📅 Using your example
Month 1:

  • Allowance: 40GB
  • Used: 10GB
  • Unused: 30GB → rolls into Month 2 ✅


Month 2:

  • Allowance: 40GB + 30GB rollover = 70GB

Now, here’s the key part:

👉 Any unused data from Month 1 (the 30GB rollover) will expire at the end of Month 2 if not used.

 

Month 3:

Only unused data from Month 2’s core allowance (40GB) can roll over.

So if you didn’t use any of your 40GB in Month 2:

  • That 40GB will roll over into Month 3


✅ Final answer

Yes — in your scenario:

  • Month 3 would give you:
  • 40GB (new allowance)
  • 40GB (unused from Month 2)

👉 Total = 80GB

 

⚠️ Key rule to remember

  • Rollover data lasts 1 month only
  • You always use rollover data first
  • Any unused rollover data expires after that month

Owethu

3 replies

MZone
Platinum 
Contributor
Forum|alt.badge.img+22
  • Platinum 
Contributor
  • April 9, 2026

Correct ✅ 


Owethu M
iD Mobile Employee
Forum|alt.badge.img+8
  • iD Mobile Employee
  • Answer
  • April 16, 2026

Hi ​@Timbo69,

I’m really sorry for any confusion around data rollover it can be a bit tricky, so I’ll break it down clearly for you.

 

📊 How data rollover works on iD Mobile

Data rollover only applies to unused data from your most recent month, and it can only be carried over once.

 

📅 Using your example
Month 1:

  • Allowance: 40GB
  • Used: 10GB
  • Unused: 30GB → rolls into Month 2 ✅


Month 2:

  • Allowance: 40GB + 30GB rollover = 70GB

Now, here’s the key part:

👉 Any unused data from Month 1 (the 30GB rollover) will expire at the end of Month 2 if not used.

 

Month 3:

Only unused data from Month 2’s core allowance (40GB) can roll over.

So if you didn’t use any of your 40GB in Month 2:

  • That 40GB will roll over into Month 3


✅ Final answer

Yes — in your scenario:

  • Month 3 would give you:
  • 40GB (new allowance)
  • 40GB (unused from Month 2)

👉 Total = 80GB

 

⚠️ Key rule to remember

  • Rollover data lasts 1 month only
  • You always use rollover data first
  • Any unused rollover data expires after that month

Owethu


Really helpful explanation - thankyou