To Answer your Query ,She can claim back up to 4 years anything more is lost wait until she is put on D stamp then apply, Do you know was it Scope who decided she should be on PRSI Class D normally employer will help with claiming it back if done through Scope, Just be aware she will loose all of the years back dated not just the 4 she was refunded
Once she is back on her D stamp apply for her PRSI stamp record , I know how the above can happen even after 1995 but I am not going into the reasons here,
she will get back the last 4 Years prsi if she looks at her P60 for last 4 years ,
Just a few things to be aware of
(1) The should stop around 2% for the D stamp unless the started lately the don't
(2)when they brought in the PRSI A1 stamp the employee PRSI A1 stamp was aroun d
7% an employees PRSI D stamp was around 1.96 % as part of the agreement at the time people who were put on the PRSI A1 stamp got 5% more than the people on a D stamp ,
(3 ) What the did was Devided A D stamp salary by 19 and multiplied By 20 to get the higher salary for the PRSIA1 ,
I would expect salaries will just change the rate of PRSI back to around 2% and not change salary back ,
(4) There is a good chance she will finish up with 5% in her salary,
(5) When she retires this is worth 5% extra lump sum
(6) 50% of final salary weill give her an extra 2.5% in her pension for the rest of her life don't over do it,
