(for TSC customers Only: Call directly using POJ technique:
Dial National customer service number:
1-800-375-5283---select 1—select 2—select 6—select 1—enter your SRC number—select 1---select 3—and select 4 to speak to a TSC representative. If your I-485 SRC doesn’t work, punch in your I-140 SRC after going back to the main menu. When the representative asks for SRC number, give your 485 SRC)