Payment to transporters

Dear friends I am engaging brokers for my transportation business. But the issue is that the brokers are not ready to give the invoice since they are just brokers. Now in that case is the lorry receipt sufficient enough along with the pan card copy and RC book of the truck owner to make the payment. Will income tax allow this. Does income tax allow to make the payment just on the basis of lorry receipts and not the bills for trucks engaged through the brokers.