Bull**** delivery

I placed an online order towards end of May, understandable that it was lockdown and order would not get sent as quickly. I phoned in the middle of June to find out the progress and was told it was with the courier and it will be escalated. Now I get an SMS to say it has been returned. I phone in to find a out that my order was returned as the courier says I was not available however no one tried contacting me. This has now become my fault when it wasn't...this is extremely frustrating as now I have to go to the shops looking for what I want