Supplier's vacuum demo uses a plain carton, ours have a taped overlap where the proposed cups sit; I'm not sure the tooling is wrong, but why are we pricing it before trying our packaging?
Send a filled representative carton as well as the photo. Can they assess holding, transfer and release with the tape and board variations you actually receive?
Make sure those proposed positions exist on both versions. Tape wandering across the top can eat up the clean patch that looked generous in one photograph.