It will be hard to tell without flowers. I can’t tell if this is a species of Costus or something in the Trandescantia from the spiderwort family? I’m not confident of either. Regrettably I don’t know what is the cause for the discoloring & damaged leaves, my guess is perhaps slugs or snails(? ). The plant appears to be over watered as well. Let the soil dries out between watering. If this was my plant, I would grow it outside at a location where it would receive some morning sun.
As this plant grows more mature, please resubmit and give us an update with new photos. For now check out these mentioned species above. Again until a more mature specimen or flowers to narrow down, I could only speculate for now. Thank you & best wishes!

Copy & paste to view a species in the Costus genus.

https://www.researchgate.net/figure/a-Young-rhizome-b-new-shoot-growth-c-and-d-young-leaves-e-horizontal-roots-f-and-g_fig1_356798369