A homeowner booked a flat in 2018 with possession expected in 2019, but faced a four-year delay. Upon receiving the flat in 2023, they were charged unexpected amounts, including farmer compensation, incorrect GST, and club membership fees not mentioned in the original agreement. The builder also allegedly failed to pay delay penalties and is charging maintenance for unbuilt facilities. The advice suggests issuing a legal notice and pursuing action through the Consumer Forum or RERA due to these disputed charges and deficiencies in service.