I suggest you let the supplier know immediately that you are concerned the plant delivered is not as ordered. Then it's up to you whether you wait and see or ask for a refund or replacement.
Vendée - 20kms from Atlantic coast. "We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
The blunt leaf tips suggest liriope to me. The broad leaves could be a bit of fasciation.
The rusty spots could potentially signify a disease which can end up disfiguring the plants, or they may just be cultural. The trimmed leaves could show they've attempted to tidy them up for sale, cutting off the worst bits. I would return both just to be on the safe side.
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Your photo looks like neither.
"We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
I ordered Liriope Muscari 2L pot and a 9 cm pot Liriope muscari Monroe White.
"We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
Fine pointed leaves may be Liriope.
The rusty spots could potentially signify a disease which can end up disfiguring the plants, or they may just be cultural. The trimmed leaves could show they've attempted to tidy them up for sale, cutting off the worst bits. I would return both just to be on the safe side.