Arriving at Immigration in around an hour's transfer from home to doorstep was easy and quick but we had to wait almost half an hour before we had our turn to register.
All went well until the lady saw that wifey's visa had been issued at another office (long story but all was sorted out at the time- or so we thought) and told us we had to report there.
"Erm, why is that? We had no trouble reporting here last time."
"Show me last receipt, please"
Luckily I had that with me and all was well thereafter but it did give us a couple of uneasy moments.
Not to worry, we're both clear for another three months and can chill in the meantime.