For pro expenses :
When your pro expense is refused, if you also have a private budget, the expense will be deducted from your private budget and not paid by the company. If you have no private budget, the expense will remain in the pro budget. Your fleet manager will take contact with you in order to refund the expense.
For manually entered expenses :
If your expense has been refused, this means your fleet manager of company does not agree to refund you the expenses you logged.
The expense will stay in status refused and the your budget will not be impacted by it.