There are a lof of scams of NFT collections and fake NFT collections.
Many people do not have enough experience to recognize a fake NFT.
That is why it is necessary to use only official website of collection.
Before the official launch of the NFT collection scammers launched a fake collection.
It is a standart tactic of scammers when they hurry and lauch fake collection befor official that people would buy fake collection.
It is necessary to be very careful with NFT and check everything.