Bad customer service

Since I took my device to Partserve for repair before the lockdown in March 2020. I kept on making follow ups with them to find out when to deliver my device back to me. I was then advised that my device was delivered to my previous work address and I left the company in June 2020. On the 8th October 2020 I received email correspondence from Partserve confirming that my device was delivered to where I used work and I must inform them if I want them to collect it back so that they can deliver it to me.

On the 10th October I responded to their email correspondence asking them to get my device and deliver it back to me and since then I haven't received any feedback from them. My question is how they deliver stuff without making any contact with with me that they are going to deliver my device and find out if I'll prefer delivery to my work place or to my home address. This is really a bad service and I need my device A. S. A. P