Specifically looking for a nice black tie dress to wear to a wedding from either Self Portrait or Needle and Thread. I've seen some nice ones, but they're all full price at the moment and I'd rather not pay £400 for a dress I'll likely only ever wear once. I'm also looking into renting one, but if I were to buy one I'd most likely try and sell it on after.
Does anyone know when the sales will happen for these brands, as well as shops like Selfridges, Harrods, Fenwick, etc?