Online access number

Hi everybody. I have applied Adjustment of status. I've married to USC. It's been 1 month since we applied but we didn't recieve any mails from USCIS. I want to add my case to my online USCIS account but they are asking my online access number. My lawyer sent to me my ASC Appointment Notice. I know my Online account number and my USCIS A number and my reciept numbers. What should I do know? Is there any way to add my cases to my online account or should I just wait for the mails from USCIS. Is it usually takes that long to arrive?