What is the cover and bell? It would be very difficult for the hood to come off since they are screwed on and threaded unless it was loose to begin with but you can replace that. Does not sounds like anything broke on the reel, just the hood was loose and flew off. Please explain a little better and I am sure I can help you with the reel. You can PM or e-mail me if you wish.
The company that builds our reels also private labels some reels for other people as well, but the internals are very different and no reels out there are exactly like or as strong as the Muzzy XD reel, we have proprietary agreements on the changes, modifications and new parts I/factory came up with to create the XD reel. You will find out in the long run, they may last for awhile, but not as strong as the original XD reel.