Some good news after an anxious wait.
After about 30 working days from submitting our application at VFS, my wife has received her spouse VISA.
We're both very relieved and surprised it didn't take longer - we weren't expecting to hear anything until next month!
We tried to provide more evidence than is normally required and were very honest about everything, so perhaps this made things more straightforward for the embassy staff.
I would like to thank everyone for their help and support