The battery compartment cover / door for my Mares MC1 dive computer has a crack in the thin plastic wall of the o-ring track so that it leaks. Are replacement covers / doors available? I would really hate to throw out an expensive dive computer if I can't get a replacement battery cover / door. It would be greatly appreciated if I can get a replacement, and my confidence in Mares would be restored. I emailed my local Mares distributor (US SCUBA in Rochester, Michigan USA) over 2 weeks ago asking if they could order the part and never heard back from them.