Excellent, thanks for that info. I rang them just now, spoke with Donal there.
Looks like there's two options, exchange (€220) or repair (€180). There are two major part number options, XXX XXX 001 and XXX XXX 002. If I have 001 I can get repair or exchange if they have the module in stock. If I have 002, my understanding is they can only offer repair.
My part number is 001, but they're currently out of stock of replacements, so he advised that I send it for repair. He said they can usually turn it around in 1 business day, which is damn quick.