help??

ok so like i don’t see any place for me to put life questions. but recently i have been applying for waitressing jobs and i got an email back from one asking to meet me and whatnot (it was from on of those do not reply places) . after that interview i was called and told i had a follow up interview. after that interview they told me i had the job and that they were excited to have me join them. i was going through my email today and i saw i had an email from them a couple days after my first interview telling me that they are not currently looking for anyone and that they wish me the best, this was also a do not reply email. i’m very confused and lost as to what is going on? i feel like if that was the case they would have told me at my second interview??? help me omg