I have been trying for the last couple hours to send through a contract to a freelancer to 'hire' them. I reviewed the proposal and pressed 'hire' but I can't complete the form. Once I fill the form out and tick the 'I agree to the Terms and Conditions' box, the 'hire *name of freelancer* button is grey and inactive. I can't send the contract through and, therefore, can't hire them. All my billing information is updated and correct, my buisness contact info and address is entered, I'm unsure why this isn't working.