I'm just not going over all this again.
As someone who had a 30+ year career working associated with ceramic industrial materials have a read back through this older post
https://omegaforums.net/threads/i-want-a-dsotm-but-scared-of-ceramic-comments-please.43429/
Let us know how you get on with Omega, but I would hope that they live up to their warranty.
It might also be wise to check your standing with the Consumer Affiars department of government in your part of the world.
Your only worry might be the fact that you did the strap change yourself and they accuse you of somehow doing that damage with tools - I'd be poiting out the relative hardness of the spring bar, and tool compared to their ceramicand the flexural strength of each ( The ceramic is around 3 to 4 times stronger) so your tools and bar are unlikely to be the culprits unless you use diamond tools!
Good luck!
...and to recap the hard data from my other post once again, Cermaics can be engineered to have whatever properties the maker desires. Categorising all ceramic together makes as much sense as saying "all metals rust" or "all liquids are poisonous" ,but in general it is harder, lighter and stronger than steel for the formulations based around Zirconia - the most commonly used substrate for these kinds of applications.
Here's those cups taken out of the kitchen:-
Click to expand...