I feel your pain. Earlier this year, I sent in 6 Brooks Robinson cards, 3 came back the same way. These were a ‘71, ‘72, ‘74. I did buy all 3 on eBay, but from 3 different sellers. There is no money in trimming the latter 2, so I doubt I happened to just stumble across 3 trimmed cards all at once.from three different sellers. I was really peeved and nearly walked away from CSG and I still have some residual anger. I also sent in a ‘54 Topps Eddie Matthew at the same time and they claimed evidence of trimming and coloring. I either got the same incompetent grader or was the random sucker for the day that gets all their cards rejected and the company makes some easy money. For what it is worth, I have had much better luck since, so I hope it was a one time issue, but based on your experience, some crazy things are still going on.