My apologies upfront if this comes across as rubbing salt in your wounds:
I don't own anything from Seaskin (yet) and I am in no way exonerating them for their website that could be improved BUT...
...you invested in an expensive product (though not as expensive as competing products) and it does not seem like you called or emailed them to discuss the product and ensure its features were the ones you wanted. Some simple communication initiated by you could have provided some protection against investing in the wrong things.
Likewise, a call or email to Light Monkey could have resulted in some imparted information about the use of their product.
Realize that Seaskin offers some of the best prices on the globe for Si-Tech drysuit accessories, so my bet is that it is not uncommon for folks to order extra kit when they purchase a drysuit. Seaskin probably maintains the perspective that the purchaser knows what they want and may have thought you were purchasing the Rolock glove ring system for another suit you or a dive partner own.
Could they have called or emailed you to ensure the order was correct? Yeah, maybe....but just because the owners of Seaskin might be divers/dive enthusiasts, that may not be true of everyone on their production team.
Hopefully they will regard your message and institute a compatibility check for future orders.
Two other things:
1) in the time it took you to post your messages here, you could have whipped out a needle and thread and thrown a few stitches in the ends of your suspenders to have them set up however you want them...some folks really like suspenders in their drysuit and some don't. Some don't know until they have used them....my bet is that Seaskin does not sew the ends to the buckles so they can be removed if one chooses to.
2) The video of the Si-Tech QCP ring modification for the original Rolock system (not to be confused with Rolock 90), was mad by Chris from
divezonescuba
I can't recall if it was you who I corresponded with in another thread about the Rolock 90, but I would be happy to buy them from you if you decide to not modify your suit. From my understanding, the original Rolock system works just as well as the Rolock 90, and your round wrist rings can be easily adapted to work with them.
I am sure you will get things sorted the way you want them to be and you will find enjoyment from your new kit. At the very least you have first hand information about a bunch of products to chime in with when others post questions.
Best of luck to you,and let me know about those Rolock 90s.
-Z