Name misspelled (typographical error) on I-797 Notice of Action (NOA)

[Myna 0]

I submitted my I-751 petition to remove conditions on residence on Jan 20th 2019, 68 days before my conditional green card expires Mar 29th 2019. I received a NOA in the mail on Feb 4th, 2019 extending the expiration date by 18 months. I noticed the next day that the last letter of my first name is misspelled on the NOA. I called USCIS call center and the agent told me that she put in an inquiry to my case and that I would hear back within 30 days from the service center. I wonder how they will get in touch with me as the agent seemed unable to read out letters and numbers correctly. I don't think she got my phone number or email down correctly and it took her 3 tries to read out the confirmation number for the inquiry.  

Has anyone else had this experience? Is there anything else I can do? Should I call again? and also fill out an e-request to fix this error? https://egov.uscis.gov/e-request/displayTypoForm.do Just posting here in case someone in the future experiences this. I will update if/when I hear back.