It looks like a cubanelle type pepper. It is a mild sweet peppper similar to the banana pepper. It is used for stuffing and frying in Spanish, Italian and slavic dishes. It is a good substitute for bell peppers and much more prolific. There are a few cultivars under the cubanelle classification but usualy they ripen to a light green yellow and eventually will turn red. they are anywhere from 4-8 inches long. Cubaneles have a flatter end and does not taper as fast as the Anaheim. Anaheim can be longer and more conical in shape.
Usually if you contact the company you might get some remediation depending on how long you had the seeds. It won't hurt to try. I think Ferry Morse is like Burpee and they repackage seeds sent from their growers. I have occasionally come up with an empty package. I have learned to feel the packages first now to make sure something is in them. I have bought seeds from Ferry Morse outlets and have not really had any problems. They have good prices and reasonably good seed counts for the money and they sent the seeds promptly. So far, I have gotten what was in the package.
I did get a red tomato instead of yellow Brandywine. Apparently a lot of people complained about it so Burpee sent everyone who bought the seeds from their website replacement seeds and an apology.
I bought papaya seeds from the UH seed lab and I should have known better. When I opened the package, they were squash seeds. I should have known better the package was way too bulky.
I bought a rose from Jackson and Perkins that failed to arrive at the usual time. I called the company and somewhere in the system the order to send the rose did not happen, so they sent the rose and I got an extra package in the mail I was not expecting. They sent me an amaryllis as an apology.
For the most part when the companies make mistakes and you have a complaint, they usually will try to rectify it.
Happy gardening in Hawaii. Gardens are where people grow.