AliExpress complaint: trouble with refund

got an IPL hair remover back in feb as we all know it can take months to see results so the 15 day refund policy is kind of useless, long story short i tried it for 8 months it did absolutely nothing, contacted the seller they didn’t give a crap. I then contacted customer service a courtesy refund request was put through I made contact again a week later an agent told me my application had been accepted I was defiantly getting a refund but it never showed up. I made contact again 2 days ago the lady had no idea what she was doing so I asked to speak to someone else that next person told me they would speak to the seller about refunding me would get back to me through email in 24-48 hours which never happened. Have just made contact again today another agent has put through another refund request saw that a previous one had been declined even though the other agent had told me it was accepted, now I have to wait 5-10 days for an email response to my application but im not holding my breath.