CELLC IS THE WORST NETWORK!!! GO SOMEWHERE ELSE

I was finally contacted, vetted and jumped through different hoops to see if I qualify for an upgrade, I was told that I qualify for an upgrade - GOOD NEWS right? NO, I was told that I qualify for an upgrade BUT they do not have ANY Apple stock AT ALL, my next question was "When will you have stock, I don't mind waiting?". I got a washed up answer letting me know that they don't have stock and don't know if they will ever have stock, as everyone is now pre-ordering the iPhone 16. How do you not only give Apple contracts and not make provisions for upgrades but also advertise phones in A CURRENT catalogue that you don't even have stock on. The consultant only responded with an "We apologize for the inconvenience caused"... NO SOLUTION. What must one do to get proper assistance.