You can ask each of the three credit reporting agencies, allows you to get a free copy of your report every 12 months.
That means you can ask each one of the three agencies for a free report every 4 months.
After you obtain an expungement and send in the Order to the OSBI, you should order a free credit report.
See this page to learn how: Annual Credit Report - Get it, Fix it here: http://oklaw.org/resource/annual-credit-report?ref=vMMxx
If your arrest record is still on your report, order a copy of your updated arrest record.
Send the updated record to each of the THREE reporting agencies and ask them to update their reports. The resource above has information about fixing your credit report.
If you have been a victim of ID Theft, this page will help you with letters to write to the Credit Bureau: Writing Identity Theft Letters