What are they researching?

If you find out, let me know, because they're giving me the same lame excuse, and aren't willing to commit to anything. BA is blaming it on AT&T, and told me they have no control over AT&T, which I agree with, but upon proof of being with AT&T it's their responsibility to post the miles, I've been waiting since 12/28/99 and nada. AT&T on the other hand blames it on the ever famous "system change" that susposedly took place Dec/Jan of recent. In this day and age of electronic capability, these things should be instant, or at least within reasonable time frame with batch processing.