I am in the same boat. Had uploaded the merged Pdf of salary slip and bank statement on the day of VKYC. Got the mail the next day, I then uploaded the JPGs as suggested in this thread.
Today got the email again, and contacted the Customer Support. They said it might be that the system keeps on sending the email. I asked them to confirm on the same parsing issue that you had, and if they could confirm that the documents have been "received" on their end. They said that they are unable to check the documents on their end. I had used the Toll Free number that comes aattached to the bottom of the mail.