DELL WD15 DOCK

Bought a Dell Latitude 3590 Notebook with a WD15 Dock for a user in May 2018. Replacing the old E-dock docking stations slowly but surely at our company. Did my research on Dell's web-site before buying, to make sure this Notebook and docking station is compatible. We have endless problems with this docking station - doesn't switch the 2 external monitors on. I have updated the firmware of this docking station. read and researched on the Internet, swopped power supply, had the power checked in this office by our electrician, etc. This has been going on for the past 2 weeks now and I give up. WHY is Dell selling this when it's not working?................................... I am complaining here, as I WILL NOT log this call with Dell support. Can you imagine how long I will be on the phone with them?.........The old E-dock docking stations had NO PROBLEMS AT ALL. I am really tired of trying this, trying that. DELL should replace this combination with something that works, at no cost. This is so frustrating and the worst of all, it's the PA of our Director!!!!!! PLEASE DELL, MAKE A PLAN!!!!!!!