I ordered a Yongnuo lens in twenty eight of March, and I still didn't receive it till n...

I want my money to be refund ... I ordered a Yongnuo lens in twenty eight of March, and I still didn't receive it till now, I request to extend the protection time three times, and the Tracking number doesn't work and it was also expired. I was in contact with the seller during two month, and he told me to wait. I can't know if the parcel was really in my country or not. I don't think that I will receive this parcel at all because it almost four month for shipping. The seller accept to refund money, but aliexpress refuses to refund they tell the protection time is still running and I have to wait ten days, I contact them two times and they tell me the same thing every time, although the protection time will end in twenty five of July. What should I do to aliexpress accept refund my money?

The parcel take more than * months and I didn't receive it

Refund my money

* months, with gold membership

Open a dispute and Contact the seller and he accepted to refund, but aliexpress refuses to refund