Timeline
8.25.2017 All documents received by USCIS
9.21.2017 Fingerprint
9.25.2017 485 RFE
11.14.2017 RFE response received by USCIS
4.20.2018 Combo is produced
4.23.2018 Interview ready to scheduled
5.08.2018 Interview is scheduled
6.13.2018 Interviewed and approved