Missing content and terrible customer service

The projector itself is okay, a little worse than I expected even considering the cost. Not sure yet if I am going to return it because we're mainly using it as an inexpensive projector for movies outside with the family on Friday nights. My main complaint is that the seller/Elephas promotes a free gift option of a screen, bag/carrying case or HDMI Adapter cable (see attached photo). For weeks I have been awaiting their reply, but they have ignored my messages (see attached screenshot). Absolutely terrible customer service. I contacted Amazon and they stated that they couldn't do anything about it, so they sent me a second projector. Still no bag/carrying case though, haha. But annoying.

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