Brendan
Your understanding is correct. (If the debt is less than €2.5 million, the PIP goes to the circuit court, and if greater than €2.5 million the PIP goes to the High Court.)
However, there is an important point that some borrowers can get confused over. If a borrower's loan was "restructured" prior to 1/1/2015 (e.g. arrears capitalised, mortgage split) they can also qualify for section 115A.
There are still thousands of borrowers with "split" mortgages who are unaware that they could reduce their mortgage down to market value.
It is very surprising that so many people are still unaware of the Section 115A power, which enables the PIP to reduce the mortgage down to the market value of the house.
Jim Stafford