cricket wireless lock my iPhone 11

Cricket wireless has lock my unlocked iPhone 11 that I bought from Best Buy and it’s a unlocked device that I can put any service providers sim in. I was told the day that I left them that my phone will be unlocked that day nothing. Then I called and was told it would be unlocked that day nothing then I was told it will take 5 business days to unlock my phone. Nothing still lock after 5 business days then was told it would be 2-3 more business days to unlock. And still nothing I have repeatedly been lied to one that really got me was cricket didn’t lock my phone it was metro pcs how I left over 4 years ago  so call them talk to metro and they laugh at the idea they they would lock a phone 4 years down the line after I left.That if it was them how was I able to put my cricket sim in and use my phone for 4 years. But it Conveniently lock when I leave cricket for T-Mobile and I still don’t have access to my phone I’m stuck using a old Samsung i spent 1300 on this phone so I guess I’m out of that money and have no access to my iPhone  cricket wireless is horrible I will never tell anyone to use there service customer service lie all day to me and then I have also been hang up on you about 5 times because they don’t want to talk to me why my phone is still lock they are just horrible