There is a delay for some customers when moving funds from Spend to Grow unfortunately. This is something the team is aware of and working on, and will likely disappear when we move to our new platform. I don’t think we are likely to see this change in the immediate future, but the new platform is coming very soon (watch this space), so I do hope it will not be an issue for long.
In the interim, as the issue is refreshing the balances, the easiest fix is to exit the app, and then re-open it straight away. This will encourage the balances to be checked and to update and you can then see the funds having moved. I appreciate that this is not ideal, so it will be fixed.