Three Emails acknowledgment with different case ID numbers

[leo55]

Hello,

I applied for naturalisation last week and received three emails acknowledgments today from UKVI at the same time.

However, the case ID on each email is different.

What do you think is it system error?

Not sure which case ID is correct one?

Has anyone had the same experience?

[londonent]

Did you apply alone or with family members?

[leo55]

I applied only for myself but received three emails with three case ID numbers.

I will wait for another email either from UKVI or UKVCAS regarding biometric reuse or appointment. May be in that email they will use one of the case IDs which will help me out in finding the case ID allotted to me.