here is the reply from Emirates to my request:

"Dear Mr. XXXX,

Thank you for your email reply.

Allow us to explain that at the current time, it is unfortunately not possible to give Skywards fare types or
miles breakdowns during the Online Change process. We wish to assure you that you will always be quoted
the lowest applicable fare for changing your flight to your new date, which may imply that in order to minimise the change cost, your new fare may be a Saver fare.

However, whilst the new fare may be a Saver fare, it does not necessarily mean that it will be lower than the
one already paid. This is because fare levels (either Saver or Flex fare) may change since the time your original ticket was issued.

We regret any inconvenience caused in this case, however we are unable to now make any change to the fare
of the ticket.

Mr. XXXX, at Emirates, we always aim to provide the highest standards of service that our passengers have come to expect and we do hope that this recent experience has not marred your impression of the service offered by Emirates.

Thank you for your support of Emirates and we look forward to welcoming you onboard.

Yours sincerely,"

Its funny. I'm a Gold BAEC member and a Exec Platinum AAdvantage member and in both of those programs when they have screwed up they have given me miles or upgrade certs to compensate. Emirates, on the other hand, doesn't want to give me a lousy 1,750 tier miles for something they admit is their own problem. I'm just supposed to accept it but continue giving them my business. I've been a Gold member for donkey's years and given I grew up in Dubai I have been flying Emirates from its start, its strange they refuse to budge on something so small.