I recently asked here about whether it would make sense to switch into Tier1 General from Tier2 General or not.
Now I've switched successfully, and have recieved my BRP. The issue is that there's a typo in the place of birth - they wrote the name of the city with double 'N', instead of using 'N' once

I am not really sure where the error comes from - from my aplication form (unfortunetly I do not have the copy) or this is Home Office's mistake.
I will be calling Home Office on Monday to find out what my next steps are, but in the meanwhile what do you think will happen if it turns out that the mistake is in my application form?
It probably does not sound like very serious issue but still I am worrying a bit.
Thanks for any thoughts