Usually the reason why there is no timeline, because they don't want user hope into those time estimation. Since most case is different, and not the same plus also depends on the trafics too.
To be honest I think that's a bad excuse. I'd be disappointed if a service that I regularly use doesn't want to promise a timeframe because they're not confident it will be resolved within that timeframe. It looks like chips does give a good timeframe for each case according to their reply though, so all is good.
Yes, I checked every Chips Originals games and they are all responsive now to any screen size. If you still don't see fixed design, then remove cache from your browser.
Good to hear that, even though it seems to not work on my end. I'll try on different devices to verify it again.