I'm still getting this since about the 18th. A small trickle compared to what is normal.
The fact you're getting reports at all suggests everything is fine. If your app is relatively new, then in the first week or two you'll get lots of downloads as the Store seems to promote newer apps over older ones.
The fact you're getting reports at all suggests everything is fine.
This has happened earlier in the year and then the data backfilled. I've purchased my own app and I haven't seen the purchase show on the reports yet (my country), I'll wait another couple of days and then send the receipt to Nokia and see if they can work out what's happening.