a few similar, but different cases. e.g.
1. with AA, i had bos-yyz-hkg, the eagle flight from bos is cancelled. i was rerouted via lax. i ended up having both miles, both on AAdv
2. with cx, during the strike / typhoon. i was rerouted from lax-hkg-lhr on cx, to lax-lhr direct on ba. i had miles on cx (i didnt fly) credited to MPO, while BA flights to BAEC.

for all cases, i flew some other route, none of the no-fly miles are given by BA, and i got 'double' credit.

so i think there is great chance you will get it. the best way is possibly call the reservation agent and/or BAEC to negotiate (perhaps they would even reroute you to Jo'berg!). the chance is you can fly, eg, LHR-AMS (so that you don't even have to change terminal!) and get LHR-DXB tier/mile credit.
and you might get double dipped if u put the lhr-ams into another FFP program.

i will not go to TLV at this time...at least not until the TU-154 incident is cleared.

good luck

[This message has been edited by pegasus8228 (edited 10-04-2001).]

[This message has been edited by pegasus8228 (edited 10-05-2001).]