Other Fuel System Fuel Injection System problems of the 2008 BMW 328

The lines that are inside the fuel pump came off while I was driving and the car stopped working in the middle of the road. My mechanics had the exact same model car have the same exact issue and when they called BMW for the parts the service guy knew exactly what the problem was. They see it all the time in this particular model and BMW states that since you don't have any recall on it that they will not fix my car without me paying for it. This has now happened two times to me and it is a huge safety hazard to have the car just stop while driving. Can you please see if you have any other complaints that are similar to mine? according to my mechanic the BMW service center has the parts on hand because they see this problem so often in this particular model. Apparently it is because the fuel injection lines are inside the tank and it is a bad design and I have been told that it is a low fuel injection system that was designed badly and they no longer design it this way.