Get a new Courier Company Miladys

Order #*** Have been using Miladys online orders for a while now, and delivery was always quick and efficient. But with above order I received my package opened from Fastway. I immediately reported this to Miladys along with a photo as evidence. Email was sent to 22 Nov 2021 to ***, as my concern was that any package should remain closed as it is a breach of my privacy when opened. As well as my purchased goods being touched. I have not even received an automated response so far and my call to ***is not answered. Now where do I take my complaint if the above is not attended to?