Hi! I,m about sending my form I-400, but a little confuse about payments. How do I need sending it to the Dept of Homeland Security: 1 or 2 checks? I mean whether it should be one check in $320, the other $70 for fingerprinting; or one in one for $390 to the same address? Are they taking checks or better sending a money order? Can you explain in details to me, please? And if two checks are needed do I send to the same address? Thanks! 