Ucas application help

If I were to remove access to my college from my application, can I still get a reference from one of my teachers?

And I'm aware that if I send the application as an individual I will have to add the predicted grades myself, how would UCAS confirm that I've entered the accurate predicted grades?

Usually college deadlines are there to allow colleges time to write and add references and to check that you’re on track with producing your sections.

Meet the deadline but talk to your college ucas coordinator to make sure that your application won’t be sent to ucas until January

Ive already talked to them but they are not agreeing on giving me an extension. They want to send the application immediately after the 23rd of Nov... What should I do now???