I got 4 of our 6 on Tuesday and then the other 2 came on Wednesday. Dh and DD's were the ones that were missing and DD who is 7 was quite upset that her brothers and sister got theirs and she didn't, lol.
Do not worry. I filed 4 at the same time on the same day and all 4 arrived on different days. By the 4th one the postman was laughing as you have to get a signature for each one. I think he was secretly relieved when I told him the last one had finally arrived.
Look at the expiration date of the passports when yours come. All of ours expire on a different day in the same month and year!!!! Whichmeans they were all processed on different days
Well mine come on Monday Glad its here and didn't get lost!
The expiration dates are different too just like above poster mentioned. How silly when they were all brought in on the same day and put through together, oh well, lol.