How to deal with poor service?

If I received 90% of my money back I would not have made this thread.

I received $250 back from paying $1200 for the humidor and $160 for shipping. I was told the vendor would fix and heard that for 3 months. At that point I contacted the vendor and stated get this fixed or send me my money back as well as send for the humidor to be picked up. It has been 9 months from that point the vendor told me to keep the humidor and he would make payments to me. One payment of $250 has been made. So not 10% but rathe about 5% of what I spent.

If I send back I will have nothing and then have to pay to try to take this vendor to court.

The vendor has told me that they will keep their word yet it has been a years time. It has also been brought to my attention that another person on this forum has a similar experience as I have had with this vendor. So I am not just being picky nor I am asking for anything that is beyond expected.