Ideally he should make the bookings right away. Check with him if all blockings have been made and give you a confirmation on the blockings of the hotels. If thats done right, then he will pay the hotels only once you have paid the 100% to him and then get the hotel confirmation vouchers from the hotel to pass on to you. As long as you have the blockage confirmation with the deadlines and release period/cancellation policy and you follow that, you should be good.
No he did not initially. He sent us an invoice only after we requested him. Also the invoice doesn't look like a proper invoice. It doesn't have a GST number, doesn't detail out the tax breakup. Looks like a pdf doc that has been sent in the name of invoice.