ForetStudio

I'm offered a freelance assignment from a Client, and they hired an intermediary broker to take care of the paper work (contract, invoicing, etc.). I'm currently reviewing the contract. However, I'm only offered a contract between me and the intermediary. The intermediary is not offering a contract between me and the client. In the contract with the intermediary, it states that I bear the risk of non-payment from the client. So if the client doesn't pay, the intermediary is not responsible. I will bear the responsibility to collect the payment myself. I assume that in this case, I will also need a contract between me and the client. In case of non-payment, I can use the contract between me and the client to collect the payment. I've also checked the model agreement published by the tax office, as the intermediary mention that they follow the model agreement. They mention that it is advised to have both contract, and 2 contracts are inter linked. My questions are: Is it normal for intermediary to offer only one contract with them. Am I in the right to ask for a contract between me and the client? How do I avoid or legally protect myself from the non-payment situation? It'd be helpful to get some advise from freelancers who have been hired through an intermediary. Thank you!