is the $750 shein gift card real?

I woke up this morning to see that i had been tagged in a post by SHEIN gift cards saying that i won a gift card. However, when i clicked on it, it said that the post had been deleted. i clicked on the account instead and there was a link to claim the gift card. i opened the link and it said that they have reserved a gift card for me, but when i went to click on it, it said that my connection is unstable. is my connection actually unstable, or is it a scam? please let me know in the comments.#SHEIN #giftcard #fyp #advice #questionstoask