I have been following the comments and discussions on eQSL.cc use by EA9CD and agree with them
I just received this rejection from CU3FV. Sounds like perhaps the same issue
SORRY DEAR FRIEND QSL CARD ONLY DIRECT. BEST 73 THE CU3FV
73, Dave WB5NHL
OBTW, I have an eQSL confirmation from EA9CD from Jul 2 2001.