That is so great. You must have been one of the luckiest person on earth. I will have mine tomorrow in london. So, you can imagine the pressure - i am a bit tensed now, but God is great!
If I may look bit silly but I have one issue; I heared you are not allowed to take in any electronics item into the emabssy and that they don't provide a temporary deposit service there. Where did you put your electronics stuff if you have taken one with you? I don't live in london. Although I can avoid all the rest, i need my mobile closer so that I break, in God's name, the great news once I finish the interview.
lome
U dont have to be afraid my brother, if u have complete documents and correct police certificate, birth certificate, and ur sponsor have enough fund, then I believe u will not have to go back again. Even if ur documents is not complete, they will tell u what u need to bring and once u provide it, ur visa will be issued. About electronics item, there is a shop down the street where u can keep ur items till after ur interview and they will only charge u £2 or £3, that was where I kept my phone and I went back there to pick it after my interview. If u ask the staff at the embassy gate they will show u the shop. I wish u good luck