Unwilling (or unable) to answer customer question

What started out as an amazing courier service has sadly deteriorated drastically over the last few months, with stores now only being serviced once per week and delivery dates regularly being missed. Do not make use of Paxi unless you are prepared to be extremely patient and receive zero answers from their "customer service" team - I believe it is more accurate to rename them the customer frustration team. My parcel is now a week late, and the customer service team is either unwilling or unable to answer the simple question of when I can expect delivery. I have been promised by three people that they will "get back to me", with zero communication further.