Consumer Redressal

had ordered a pair of Bacca Bucci shoes(size-10/44) at HS 18 on 10th Nov and somehow they delivered the product by 15th of November.However,when I tried the product it came out to be of smaller size i.e. 9/43 and I requested for an immediate replacement and shipping the right one to me. Evidently I have been following-up since 17th of Nov. for an response from HS-18 to arrange a pick up of wrong product & exchanging with the right one but unfortunately it has turned out to be very frustrating and all efforts go in vain.This has been most frustrating & worst buying experience where a customer is getting inconvenient due to seller's mistake.And till the date after so many follow-ups I haven't recd. any satisfying answer. - There customer care executives never respond in a right manner and just convince the customer with fake commitments. -Even the Senior people at CC are sitting without any proper/right information.What is the motive behind making them the senior point of contacts ?? -