(a) none came to hand when I searched
(b)
1. Book your trip (or assuming you won't mind paying US$75 to make it real, a straw-man with a firm first flight, date and destination) with the BA RTW desk nearest you.
2. Fax Ms. Sobhi in CAI, giving her your record locator. It helps her, since she apparently has very few electronic tools, if you know what you're doing and demonstrate it by including a nicely printed list of your itinerary, showing which places are transits and which are stopovers (matters for taxes), and a count of segments in each continent and the total count. She can do all that too, but will appreciate that you've done your homework.

3. Pray that if a price increase is imminent that she will be willing to deal with your request in a timely manner. This won't be true if several dozen FT'ers are ahead of you for her attention, or likely if your start date is too far in the future. I don't know how far ahead she'll sell tickets (she obviously has to account for them in her safe until you pick them up). In my case she waited many weeks (last spring) before selling me a ticket, even though I gently prodded her to sell the thing to me, not wanting to bet on the future rate of exchange.

My present guess is that if the increase is next week you won't make it.