1998 Other Nissan Models Car windscreen wiper

[quote="MandyTDaly"]Other Category problem
1998 Other Nissan Models 100000 miles

I hope you can help. The rear windscreen wiper stoped working two weeks ago, a few days later my car stoped working, the battery went dead and got it jump started. I was told by the mechanic just that the back wiiper motor was gone, and the car not worth getting it fixed, but it just wont work. So he advised I get a new battery. And get it services, which cost me 400.00, however 2 weeks later, my car is gone dead again, however I hear a noice at the back of my car which sounds like the back wiper motor, even when the keys are not in the ignition. Would this be a reson for the car going dead again. I am a woman and dont want to go back to the mechanic as I feel he riped me off the last time, and the problem isnt even fixed, can you please advise what I need to do now.