When having our new house built we selected cherry kitchen cabinets as an upgrade (extra cost). We got some nicks in the bottom cabinets from accidentally hitting them with the vacuum cleaner. The cabinet repair person that fixed the damage asked if I was aware that the wood was poplar, not cherry. Apparently poplar is sometimes used as a cheaper substitute for cherry and can be stained to look like cherry. However, it is a much softer wood and therefore prone to nicks and scratches. When I asked the builder about it, he said he had had no problems with the cabinet supplier's products and that they were cherry. How can I find out definitively what wood was used, and what can I do about it if it is not the cherry that I paid for, but poplar instead?