Amazon Decay on the horizon

Terrible Experience. I ordered a set of 2 chairs and only 1 arrived. They gave a partial refund for the second one and said they will waiver the shipping and taxes of the replacement order. The replacement never arrived. Now they say there is no replacement available, and we are stuck with the one chair. What do we do with one chair that is supposed to be part of a set? They want to charge us to return it! And they have still not refunded the outstanding fees (shipping and taxes). I am now forced to log a dispute via the bank. I have been using Amazon for two decades and have ordered several high-end items. After this, there is no way I will use them again. Just like other institutions Amazon will also in time decay.