Hope this will help you.
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From:
XXXX
Address
Tel # XXXX (H)
Tel # XXXX (O)
To
USCIS TSC,
P.O. Box 851488,
Mesquite, TX 75185-1488
Phone: 800-375-5283
Fax: 214-962-2632
Dear Sir or Madam:
Subject: Finger Print Request
I just wanted to bring it to your attention that our I-485 was filed on XXXX date and we have not received our Finger Prints Notice till date. Lots of our friends who filed I-485 at Texas Service Center after we filed had done their Finger Prints and some of them have their I-485 approved. So we request you to please expedite to send Finger Print notice and our I-485 processing.
A speedy processing of our I-485 petitions after our Finger Prints would be greatly appreciated.
Here is the detail of our cases.
1. XXXX (Primary applicant)
SRC–02-XXXX / A# XXXX
2. XXXX (Derivative Applicant)
SRC-02-XXXX / A# XXXX
Please feel free to contact us if you need any further information.
Thank you and
sincerely,
XXXX
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Change some wordings to say that your FP is expiring.