idownloader pro

Dear Sir,
Kindly note that I have purchased an application from your store called idownloader pro with 1.99$ and I have deleted it 2 days ago by mistake, I tried to download it once again, I was surprised that it's disappeared from the store, and even from the list of purchased items that I downloaded before, so please how can i restore it as I need it, and I paid for it before !!!!???