Separate Stage 1 (buy) from Stage 2 (ship abroad)
Superbuy describes total shopping cost as product cost, international shipping fee, and optional value-added service fees. Those map to two stages: purchasing into the China warehouse, then shipping overseas.
Stage 1 is what you pay so Superbuy can buy the item and receive Chinese domestic delivery. Stage 2 is what you pay later to move a consolidated parcel abroad after QC. Spreadsheet cards almost always show only a product-side estimate.
Mental model for a haul: shortlist on this site → pay Stage 1 in Superbuy → review warehouse photos → choose packing → pay Stage 2. Mixing those steps is how “cheap sheet finds” turn into expensive surprises.