Pro Mariner onboard chargers

[dew2]

I have a ProMariner ProSport 12 2 bank charger,I've been emailing the company.The charger went out after a 2year period.The company had me test it and its not going into charge stage only the maintain stage.The company wants me to send it in to them for repair,However I cant get them to tell me if repair will be nocost or what they will charge! They seemed to quit communcating with me now after I asked whats the charge.The last email from them after my questions was just "Thank You Sir" Thats it! I called and I believe I got the same guy who emailed me after his questions about who I am he hung up!!
  Anyone know anything about these chargers? Can I repair it myself? Anyone help me?
  I did a search of Promariner complaints and theres so many with the same problem as I!! I purchased the wrong charger.In the ads they make it sound like no other charger can compare their the cats meow.

[HD]

I would call the better business bureau if they refuse to help you.