My récipissé is about to expire in 2 weeks but I still haven't received my carte de séjour. Is there any way to check the status online? I applied from Paris (Cité) and I haven't had any response. Or if I call them what number should I contact them on?
I am not aware of any way to check the status of your application online. It might be worth trying but I wouldn't expect too much from a call either. In all likelihood, a decision hasn't been made yet. You will hear about it whenever there is a decision but that doesn't solve your immediate problem.
Meanwhile, you are supposed to show up/make an appointment (depending on the préfecture) to renew the récipissé. It's very frustrating and is supposed to be exceptional but in practice it does happen a lot.