If the transactions are already in the report, it is usually beneficial to remove them from the report. Then, in the "Available Expenses" screen, Concur should allow you to check the box for each pending item to match them.
@andrealliott305 if they are not auto-matching, then bot the receipt and the card charge should be sitting in the users' Available Expenses. Users can select both items from the Available Expenses section, then use the Match button to combine them together. Have them try that and let me know how it works out for them.