I'm in the same case. My question is:

My receipt date is June 10. When my lawyer file my EAD renewal, he included I-485 receipt and previous EAD approval notice, but no speedup white slip with barcode. My EAD will expire on Aug 3. How can I add speedup white slip with barcode to the application now? Can I book an appointment through infopass and give speedup white slip with barcode to them to speed-up? Thanks.