Hi , I submitted my application on 4 july2017 they recived on 10 july 2017 i got AOR on 14 august on 15 august i got sponsor eligibility approval and linked my account on 15 august on 31 august they asked me to submit the medical results and on 5 September they ask to submit the PCC and scadule A from medical is passed on 15 September and documents were submitted on 15 September on 12 oct my GCkey show background is in process and on 16 oct i got a email that application is transferred to London. And on 19 oct my ecas says visa office stat processing .Can anyone tell me what is the next step and how much time i will take