Booking Sattva Lake Ridge: So many hidden costs?

Budget finalised, loan pre-approved — but my experience with Sattva Lake Ridge has been a total headache since booking. Expected possession for our unit was late next year, but now I'm hearing whispers about delays, not sure if it's true. The bigger issue is the 'total cost of ownership'. What they advertised and what I'm actually paying are miles apart. So many hidden charges popping up for registry, legal fees, even some weird 'amenity upgrade' cost. It's like a never-ending list. Honestly, I feel misled. Did anyone else booking with Sattva Lake Ridge face similar issues with unexpected costs or registry process? How did you deal with it, yaar? Any tips on negotiating these last-minute add-ons?