Congratulations on your launch!
Other folks have provided a bunch of commentary on the validity of your idea, so I won't address that.
BUT: if this is a good idea, your pricing is far too low for a niche product like this. $10 (or 10 quid) is too low a monthly fee for pretty much any product marketed as a business product. 10 per seat per month is probably also too low, but would be a better starting point.
Likely objection: "But Spotify is only $10/mo!!!" Spotify has the much larger addressable market of people with hearing and an Internet connection. Even Dropbox has a higher price point for business users, and it also has a far larger addressable market.
If you're building something that's useful for people, charge more.
Good luck!