If you have just received the plant in the mail, it will take some time to recover.
The major things you can do are:
1) place the plant in a tray of water, and keep full. It is not best to water from the top, but rather allow the plant to take the water as needed. Keeping 1 inch of water in the dish will be fine.
2) good lighting. The plant will do best with good light. Partial shade and a few hours of bright sunlight is best. If you do not have that, then the next best thing to do is to place it under a light. Cool White lights, 6-8 inches away from the plant, 12 hours a day.
3) the right water. Distilled, rain, Or Reverse Osmosis ( high filtration water ). Tap water, spring water, mineral water, water through a brita filter are not good.
4) No fertilizer. It will catch a bug for food. ( and it doesn't have to do that
)
5) warm temperatures. The plant will enjoy temps ranging from mid 70's-mid 90's The soil temp is a concern if it goes over mid 90's ( that is soil temp and not room temp ).
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The best thing that you can do for the plant is to give it the above and lots of love
It should be ok