Just to chime in here about how terrible and unaccountable the delivery service is -

I bought a part for my bike that on first attempt went to the wrong intermediate routing center. They marked it as undeliverable instead of just rerouting it. I had to get a refund and was promised a $25 credit to my next purchase. That didn’t happen.

I ordered the same item again. It was lost in transit. Got refund with no credit.

It took the third try to get my item. I selected same day delivery on the previous two but not the third.

I live in San Francisco and the item was in their Fremont fullfillment center. So....?