I'm not planning on giving lessons in how to alter a document in an undetectable fashion. What I saw was more than enough to convince me that something is very wrong with the documents.
If what you sent looks altered, the originals should show the same signs of alteration.
Based on what I've seen, the FPA is not going to take an active role in your case. You are free to continue posting in this thread. If you truly feel I am mistaken about your documents, please take the issue up with XM's regulators. You can find a list of them here...
XM Regulation and Licensing | EU Regulated and FSA Authorized
Ask then to rule that the documents are complete, accurate, and unaltered in any way. If they do, I will apologize and throw the FPA behind you on this issue.