Insurance for occasional work use.. also single vehicle only!?

[brzl al]

Hiya!
We're new to bongo world, and struggling to find insurance for just one vehicle - and also to use the bongo for very occasional work use (most of our daily/weekly journeys are by bicycle).
It now also seems like not having a private driveway is adding to the difficulty of finding insurance (possibly bristol-specific issue).

Can anyone advise on a company that might cover us?

Thanks!