When I tried emailing Tal in the past they were very slow in responding. It sounds like the phone approach may be the best, as used by Mycombs.

I'm not well versed on the ins and outs of GSAs but I suspect that they are often small offices with limited resources. A sudden influx of requests for weird and/or highly complex tickets may overwhelm such operations. Note Mycombs said this was the first RTW written by the Tal rep.

I think I read somewhere that after 16 flights the tickets had to be hand-written, but that with fewer segments they could be e-ticketed or machine printed. That might be easier for such operations to handle, otherwise more time will need to be allocated.