Free is just a gimmick. When you pay your deposit in 800 yuan, you can't expect to get it back (no matter what promises the staff give you, no matter how good it is, it will be returned when it expires). Unless the contract is clearly written in black and white, the deposit will be returned to 800 yuan RMB on XX, XX, XX, otherwise it will be Hehehe.
You have to believe that in order to trap you, the merchants will definitely give you some so-called sweetness first to lure you into the bait. As long as you apply for your' free' annual card and pay the deposit, the merchants will have one new trick after another.
You can look at the contract signed when you apply for the card (if you read it carefully, if not, I advise you never to pay, because the card given to you by the merchant must say' the final interpretation right belongs to XX merchant', and your interests can't be guaranteed at all). The result at that time was that you spent money and then bought yourself gas.