I would be ringing them up every hour until they bucked their ideas up, creating merry hell with them. They might get away with it if you let them.
Find out their complaints procedure and start with it right now, follow it to the letter. You should be having a hire bike until you get that cheque in your hands or cash in the bank. If you aren’t getting it take the matter further, go to ombudsman if you need to.
Get quotes from a couple of bike shops for a direct replacement bike.
If there is any damage to your kit get quotes to have it repaired or replaced to the state is was before the crash.
Does a bike helmet need replacing like a cycle helmet when it is knocked? They need to replace that too.
Document every phone call and letter, ask for everything in writing.
Make sure you get checked out by a doctor and photograph every bruise and cut.
I know it sounds like a lot but it’s not hard to make sure you are treated fairly. Which at the moment you aren’t.
I was treated the same way after a cycle crash and I managed to get what I was due after doing all the above.
That person could have seriously injured or killed you. The insurance company should be glad it’s no more serious than it is, but they don’t care about you and just want to save money by treating you like crap.