Where did you buy the bass - did you pay full price? It sounds like you have some issues, I have asked ptrice to answer you as well. I will try...The bass sounds like it may have been in stock for a while, the Roger Glover Custom series came out in 2008, while the Roger Glover Original followed a year later.
1) We use 9v batteries - these can 'die' if the cable is kept plugged in for long periods, draining the battery. You should replace these with high quality 9v batteries for better performance. There is no set 'life' to batteries in active cirecuits. It will depend on the use, could be a few months to a few years.
2) This is the wrong case and all Roger Glover basses will have been shipped in the specially designed Vigier-Hiscox case. I would consult your dealer to get your case back.
3) I will let Patrice help with this - possibly dust in the pot (can be rectified very easily).
4) The Vigier jack can be sensitive to inferior cables. Use RapcoHorizon cables to be sure - good quality (switchcraft) connectors will work fine.
As for the seial number - this does not seem corect at all...again, I think Patrice will be able to help with this.
Good luck to get these issues fixed, and welcome to the Vigier family - even with the small issues, you have a lovely bass that will provide you with lots of enjoyment.