bucketlist, if you signed up for the platinum card from the united.com link, there are different T&C's (right now, anyway).
http://www.firstusa.com/cgi-bin/webc...cont&mkid=644X
. Earning EQM: Upon enrollment in the program, you will receive a one-time bonus of 5,000 EQM. Also, you can earn up to 5,000 additional EQM each Year at a rate of 1 EQM per $1 of eligible net purchases made on United.com.
Terms changed at some point to bonus at time of enrollment, not after first purchase. Also, it depends on how they define "eligible," but I suspect that it doesn't count if the transaction was initiated via a call center, as yours were.