It is not Revenues job to ensure that employers give their employees payslips. There are so many regulations that apply to employers that I will not get into them but as mentioned above NERA are the agency to deal with employment rights and they are the people that you should call.
What specifically is the issue with your P60.
A. is the gross pay on your P60 different to what you had agreed.
B. has the incorrect amount of tax been deducted.
C. has the wrong rate of PRSI been applied to your salary.
D. has the wrong amount of USC been deducted.
You will be able to compute these yourself.
http://www.deloitte.ie/tc/
The employer has to submit a P35 at the end of the year to the Revenue, if they have issued you with a P60 and it does not match what they sent in or they did not send it in at all then. They would want to be nuts to issue you with a P60 and deliberately file different figures.
I'm sure that Revenue will get around to dealing with your employer in due course, there may be an innocent explanation, there was a poster on here recently who forgot to file the P35. The payroll person may be out sick.