Sagittarius 19" alloy cover loose and fell or theft?

Hi.

Just see that my 2023 skoda sportline karoq 19 inch wheels 19 inch.

Sagittarius I believe? One of the covers is missing. Unsure if has been missing long and wanted your take on whether it has been stolen or has just fell off due to bad clips or design flaws. See photo of good wheel and the trim removed. UK right hand drive. Passenger rear.

I think this is the missing piece?

https://www.skoda-parts.com/spare-part/57a601169cfl8-wheel-cover-skoda-45385.html

Not the cheapest. And a quite bit delivered so wondering if Skoda would fit one cheaper and examine the rest to make sure the clips are okay if they were not stilen and loose.

And bonus question.

8000 miles at present. How many miles am I hoping to get out of the skoda turanza summer tyres? Looking to upgrade to all season.

Either

Prelli SF3 (SF4 when released as they have wet grip and rim protection)

Good year vector 4 (5)

Continental all season

Or Michelin cross climate.

Got the 225 40 R19 and looking to uograde to 225 45 R19.

Anyone went bigger e.g 235 45 or 225 50?

Cheers