The real cost of online PLA via a facilitator like Edpro is 4 hours a day, 5 days a week, for 8 weeks where you will be attending online class with camera on, and you need 90% attendance. The euro cost is ~ā¬700 which is frankly a rounding error in the whole process. It has been extensively discussed in the forum, for example in A2 Portuguese Language Certificate course - #5 by minimaxr and Language required for citizenship - GV
Many people here have successfully completed online PLA, and a few who have submitted naturalisation applications using PLA as well.