Please see the following link to understand your endorsements: IDL/IDP Endorsements

The A-E endorsement key is the international standard as set by the UN Convention of Road Traffic.  The breakdown is as follows:
A. Motorcycle
B. Car
C. Commercial Truck
D. Bus
E. Van/ Trailer

These endorsements may differ from the standard that your domestic license uses.

If you need to make a correction to your application or documents

Please refer to the email you received with the subject line "ITA Order: YOUR_FIRST_NAME  YOUR_LAST_NAME"

Find the section titled "CORRECTIONS"

Click on the link titled "Correction Request"