I too welcome you and offer sympathy. Olympus have a reputation for having a very advanced image stabilisation system in their mirrorless OM-D...
A close shave
Not sure if B&W works better
For the second time in a couple of weeks I can offer a poor alternative to Mike' shot:
From what you have stated, the ad agrees with Sigma UK's website.... 2 years on cameras and 3 years on lenses.
Dave, where did you see the ad...
Checking the website, it's 2 years for Sigma camera gear and 3 years for lenses... but only for the UK. It mentions a 12 month European warranty...
Separate names with a comma.