As per our Remuneration for Services Agreement:
Expenses
Client shall reimburse Developer for all expenses arising from Estimate(s) including, without limitation:
Client shall advance 100% of these costs to the Developer for payment of said expenses at the request of Developer.
When applicable, Client agrees to reimburse Developer for all reasonable travel and all out-of-pocket expenses incurred by Developer which have been agreed upon between Client and Developer prior to such incurment of expenses.