Just do a search in here for that seller, you will find quite a few complaints.
Some recent ones:
https://pinside.com/pinball/forum/topic/how-bad-are-the-classic-arcade-decals
https://pinside.com/pinball/forum/topic/classic-arcade-ebay
https://pinside.com/pinball/forum/topic/ministry-of-pinball-decal-warning-poor-quality