Help on Annual allowances and Gross annual salary in Tier 2

[ab713]

Hello,

I have submitted a tier 2 application form with the following information.

Gross annual salary: 2X,XXX

Annual Allowances: 0

In my COS following information is present
Gross salary including any allowances and guaranteed bonuses (in pounds sterling, using format
'1234' or '1234.99'): 2X,XXX
For each: Year
Gross allowances and guaranteed bonuses included in the above figure (in pounds sterling, using
format '1234' or '1234.99'): 0


Now my questions if my employer after I get the visa provides me allowances (Like Car Allowance and Bonus) what do I need to do? Do I need to apply for visa again or employer can edit the same CoS or they need to give me new CoS if they are going to give me new CoS do I need to do anything on my side?

Looking forward to hear for replies.