WORST SERIVICE PROVIDER!!

Worst customer service ever, my order has been dispatched four times, but it never arrived, then later I receive the notification that it was returned because I never picked up my phone whereas they never even bothered to call , from the 11 November till today the 15th my order is being picked by the driver and returned later with none communication nor call! why do they have our contact details if they won't use it in case of inconvenience? Their WhatsApp contact way too useless!