Adidas disappointing customer service!

I cannot believe that such a good name brand can provide such bad service. I ordered (#***) Winter essentials online, during the lock down. Due to the Covid situation, we are not allowed to work from our offices. I reached out to Adidas to change the courier address to my home address three times. Claudia Brukman and Galiema confirmed the change of my address, yet the parcel was delivered to my office address. I informed them about it four times, they told me they will get back to me. I sent five emails requesting updates regarding my request but don’t get any replies from them. It’s like they don’t care and don’t want to rectify their mistakes. (confirmation emails from Adidas (Claudia) confirming changes are available. If this is how they treat their customers I really cannot give good reviews on customer service. Can someone from Adidas please assist?