Chapman BMW on Camelback

I tried to order a simple part- a gas cap, online from Chapman-which is apparently impossible. I was prompted to a 3rd party to assist me-and after being forced to provide excessive demographic information- I was promised a call from Chapman Parts Dept for help to complete my purchase- but Chapman never called- and after wasting hours of time and being interviewed by their 3rd party assistants-extensively and against my will (I answered their questions in the hope of getting a chance to buy my elusive gas cap-feeling I had no other choice) Since several days had passed- I finally contacted Chapman by telephone and waited for a parts dept rep to give me the well guarded info- they had one unit in stock, and it was 20 dollars. I went to the dealership literally ten minutes after they opened- and as I approached the counter of the parts area- I made eye contact with the man behind the desk- who immediately went into a back room and out of sight. Eventually- he returned and faced the burden of making a cash sale for the gas cap I needed- but it was 35 dollars- not 20 dollars-which I mentioned being quoted and was given a non-verbal response of a look on his face which I understood conveying his belief that I must be ignorant to the fact that he didn't care what I was told on the phone, and I needed to pay the nearly double amount-or try to find the part elsewhere-which seems inconceivable. As he asked more demographic information - my name- address, etc and processed the paperwork for this gas cap acquisition- I politely inquired about an adapter to convert a power outlet inside my glove box- which was designed for a small flashlight and can be used as a phone charger with the adapter I was interested in. Without checking his computer- he told me Chapman had actually been believed to have sold the last one in existence a long time ago- and the adapter is no longer available -not even through BMW in Germany! I asked him if he knew of ANY possible way of purchasing one and he again gave me that look in his eye that reminded me I was just a BMW owner, and he was Chapman parts God- He then reiterated his "final answer" indicating that I can forget about obtaining such an item- they have been eradicated from the universe and Chapman was the last known source who hasn't had one for years. I thanked the representative and decided not to ask to see a BMW wristwatch that caught my as I waited for him to return from the "customer avoidance area" in the back (when I initially arrived and caught his eye) I collect wristwatches, and I am a BMW fanatic...so it was difficult for me to leave with the watch which was clearly priced in plain view in the glass display case-- I knew I had already caused the man behind the counter too much work already- I didn't dare suggest he step out from behind the counter and into the "public area where the dreaded customers are waiting for the privilege of paying premium retail prices for the merchandise they reluctantly sell. I left the parts area and proceeded back through the building to leave- and nodded hello to the multiple service reps who gazed at me over their cubical dividers expressionless but unaffected by my unfamiliar friendly face- a face they would see three more times in the coming minutes because I decided to screw the gas cap onto my vehicle because it is a pressurized system and I consider the cap to be important to the older car's performance- "Long story-even longer" I had to go back to the parts department a second time to apprise the Chapman rep of the fact that production dates of my model year- often affect parts- and he must have sold me the wrong cap because it didn't fit. His response was "Whats the vin number- as he started punching keys to process the exchange- I doubt the model year had more than two gas caps to fit the car- but I went ahead and made my way back out to the parking lot to retrieve the vin number (I wondered if people actually memorize that long alpha-numeric code- as I again passed by the service rep desks behind the cubical dividers they use to shield themselves from being at risk of someone like me-who might inquire about scheduled maintenance needed on a car old enough to incur customer costs for being well beyond its warranty period...Anyway- I grab my insurance card and complete my required errand to obtain a vin number for the Chapman rep to determine the part number for the other gas cap which was also used on my 1997 car (which is virtually flawless- except for the missing gas cap) Needless to say- I caused much strain and grief when I asked for my cash back- since they sold the last available gas cap I needed "just yesterday" I asked if there was anyplace he would suggest I try to find one- and an open screen in his line of vision prompted him to tell me there was only one available at "their sister dealership" which was located in an East Valley Suburb - quite a long distance from my Central Phoenix neighborhood. I asked if there was any other possible source (because I was afraid the "one unit available" might have been "sold yesterday" and it seems likely that The other Chapman location might be a sister location that employs this representative's brother!) He didn't bother to inform me of another BMW dealer or BAP or even Ebay as alternatives to correcting my car problem- which is now crucial because my registration renewal is due and cannot be renewed without passing emissions testing- and the gas cap is a required part which the emissions test will result in automatic failure if it is missing- especially since the lack the cap has caused the "Check Engine" light to be illuminated on the dashboard- another factor which results in automatic emissions test failure. I still don't have a gas cap, and I still want that BMW watch I didn't dare ask to see closer...and I doubt if I flashed the Rolex I was wearing that day-would have prompted the Chapman rep to offer to have the gas cap transferred from the other Chapman location either- so I went home without my gas cap- and found the power adapter I was told no longer existed on the planet- on eBay---but I didn't buy it- because I'm now considering trading the BMW on a new model - perhaps a convertible to make me less aware of the fact that this visit to Chapman BMW on Camelback was on my 50th birthday! I won't be trading my car at Chapman though I'd rather switch to Mercedes.