@peemac - nowhere does it say homeloan variable rate. The wording is 'prevailing variable rate'.
'At the end of the fixed rate period the lender's prevailing variable rate will apply'. That is what is in our contracts.
In mine, on the fixed rate instruction, it said "Homeloan variable rate" - and as those who were on trackers and then went to fixed, they were able to argue that the variable rate is that written in the main contracts as that was a reference point and it stated clearly that the xx% above refi rate would be "for the life of the loan".
Even in the wording you give - it says "at the end.... the prevailing variable rate" - so it would be the prevailing rate at that point. Variable rate are variable, so you couldn't argue that the variable rate at the beginning of the fixed rate applied - in that case the rate would be close to 5%.
I was one of those affected, but I also was one of the few that went through the FSO procedure (lost) and also looked at every legal angle and got a lot of legal advice on contract law - (those who were on tracker and moved to fixed had a strong legal case, but not water tight) therefore I am being devil's advocate on all my comments.
When you realise that the financial sector provides the legal profession with over 30% of the gross income you can be certain that any legal firm representing the bank will fight tooth and nail with their best people for the banks.
And in the absence of something concrete in writing somewhere, preferably in the contract itself, that suggests your particular mortgage has an entitlement to a tracker or a rate that is xx% above ECB/Refi rate, it will be nigh on impossible to win against them. (The AIB customers had the word "tracker" written in the contracts and the argument there is the rate that would have been reasonably expected at that time)
In general here I see two arguments.
1 - The booklet says you will have a choice at the end of the fixed rate period to choose what rate structure you go on to. But the contracts say you roll on to the prevailing variable rate
2 - The prevailing variable rate was a tracker. - However the same booklet that says you have a choice to go to a tracker (or capped tracker, or variable or another fixed rate) also explains the different rates and gives a definitive description of a variable rate and separate definition and a clear one of what a tracker rate is.
What you need to do is make an argument that in reading and signing your contract, there was something in the information that the ordinary person would have assumed that the rollover rate was tracker rate at a specific % above ecb and that this rate was the default rate that the fixed rate would move to.
That I think will be extremely difficult.