I got a similar run-around at my first battery service. I was simply unable to get them to give me a piece of paper showing the measured/stated battery capacity in amp-hours. They kept giving me a piece of paper that said "Battery Okay". They too said it was all they had.
At the second check, it took some doing, but I did get the requested report. However, they charged me $295 for the battery service, saying that I don't have "Sale and Care". After weeks of calling MB Financial Services (the manager of the Battery Assurance Plus) and MBUSA I finally got them to agree that the desiccant pack should have been part of the service. They refunded me only $60.48. Using your numbers, I should have been refunded $170.75. I feel cheated.
What Technical Service Bulletin are you referring to? I'd like to have that next time I bring it in.
Here is what I got from AlldataDIY:
Battery - Maintenance or Status Check of High Voltage Battery
Date: May 6, 2014
Order No.: SM-B-54.10/09
SUBJECT: MY-All, Model 451.390/391/490/491
Preparation for Performing Maintenance Service or Status Check of High-Voltage Battery
Here is some text about prepping for the test:
"Drive vehicle (discharge) to < 40 % SOC (see left-hand round "SOC" dial on instrument panel).
^ Leave vehicle parked for approximately 2 hours (no driving, no charging).
^ After this idle period of approximately 2 hours, connect the charging cable, and fully charge the vehicle to 100 % SOC.
^ The vehicle can then be operated normally again."
It also says:
"The test log is to be included with the maintenance documents, and handed over to the customer when requested."
Concerning the cost, it appears this bulletin directs the dealer to charge you for the filter:
"Notes on cost settlement:
^ For maintenance care customers, only the high-voltage battery test as per the applicable guidelines will be covered under warranty and through damage code 0080F."
The above appears to apply specifically to Battery Assurance Plus tests (aka "Sale and Care Warranty" tests) by starting out with the words "For maintenance care customers...".
I called the MB Finance folks (who own and administer BAP as you indicated above) and asked about the filter. I was put on hold while the person polled around and she came back and said "No, only the test is covered". I pointed out that my lease says "Routine Maintenance" is covered and she remained firm that the filter was not covered.
So, some dealers charge for it, some don't. I call and MB Finance says "No", you called and they cover the filter. My guess is that neither are sure (or they are sure and it is not covered) but you made enough noise that they covered it as a Customer Satisfaction issue/case and have a code to write it off. Maybe the dollar amount is small enough that they eventually caved in.
This reinforces my other posts on this forum. We are going through an electric car "experiment". It is new and stilll in its infancy. These manufacturers and owners are finding their way through this trying out different things to see what works and what does not. We don't have the 100+ years of experience dealing with this technology as we have with ICE cars and maybe we should not try to apply that model to electric cars. I believe we have to expect some confusion and go with the changes (or punches). As I said - Somebody has to go first. While all this may annoy some I find it interesting. Then again, I have not faced a potential budget busting situation and most of this stuff is intellectually interesting as opposed to financially life threatening. Also, my "threshold of pain" for this car is high because I REALLY like owning and driving it.