Need urgent advice

[fak005]

Hi
I am in Dallas, TX and have received my oath letter but need to reschedule oath due to family emergency. However, I don't know what address to mail it back to? The oath address is district office address at campus cirlce dr in irving, TX, however, the address on envelope is
USCIS-NBC
PO Box 648005
Lee’s Summit MO 64002

Pls let me know if I am suppose to mail the request for rescheduling to District Office or NBC address on envelope.

Thanks
fak005

 

[Bobsmyth]

Send it back to your DO and request to reschedule. Make sure to follow up with them via Infopass within 30 days if you don't her anything back.