I can answer this question, and I have answered similar questions before. I bought it before, but it never happened as the landlord said, and it still works. However, a friend of mine once met him. He bought a photo bag from the photo studio, but he never used it. Suddenly one day, he received a phone call from them saying that the store he bought was closed, so he came to my friend for a refund. It's unexpected. He feels good.
Also, you should pay attention to its service life. The service life of each product is different. I don't know if it can be used after its service life. You shouldn't use it, and it may not be returned to you after it expires. Anyway, if you encounter other situations, I suggest asking them, which should solve them!