I applied yesterday for my ILR but unfortunately it was refused because I wrote in the application form the wrong salary different to the one from my COS and My employee did not explain clearly in the letter what my full salary was.
I put in the application form that my salary was £22.000 per anum. However, my COS says my salary is £22.278.
Unfortunately my employee said in the letter: The applicant salary is £22.000 per year + Health care allowance. The health care allowance is £278 but he didn't mention my full salary.
If I had put the salary that my COS says, I would have now my application granted

What should I do? Should I apply to a visa administrative review or should I apply again and write the correct information? and if so, am I allowed to apply again after my application was refused?
I am not sure if the administrative review will work, as I did sent wrong information in the application form. Please help!
Any information will be very appreciated.
Thanks
Andreskdr.