I swear there is something wrong with combining 2 payments into 1 and sending them to bitstamp or how ever that is done

This is the 2nd time I got 2 renters, both of them renting my #1 rig for 3 hours same day, but only one of these payments goes through to bitstamp, even though I sent an email to bitstamp showing them txid, they said this is 3rd party fault, not theirs.


I saw someone posting something like this 3-4 pages back??