Unfortunately it seems that is the case, all people I have seen reporting updated invoices have mentioned this (including me). Another thread mentions that people are now being told explicitly by email that they have to choose original price with FSD discount or new lower price without, which seems to differ to what some were told on the phone earlier.
It's understandable but almost completely negates the purpose of offering the discount in the first place given the relatively few deliveries made pre price change. As a new product launch it would surely have made more sense to keep the price stable for a couple more months to at least deliver the majority of orders with the FSD discount - somehow they have ended up saving people money but still doing so in a way that leaves a bit of a bad taste!
