ordered a part from them and it didn't work, tried...

ordered a part from them and it didn't work, tried several times to return it and every time I contacted them or went to the link to return my item for a refund it didn't work and got nothing but the run around. It is a shame that they won't do anything to make the customer happy. The number one rule in a business is customers is always right no matter what and to always have happy customers but yet they are starting to fail at that.