Sante Classics Caftan Mumu House Dress Kaftan Blue One Size *defect

Very pretty Sante Classics Caftan Mumu House Dress Kaftan One Size Blue, Black white with gold flecks on frontside *defect --> back of neck seam has come a little undone. If you sew this should be a quick fix. Measures approx: 56" shoulder to hem 36" sewn side seam to sewn side seam