DIFFERENT APPLE ID FOR WHATSAPP HAS BEEN USED

EARLIER I WAS USING MY BROTHER'S APPLE ID BUT LATER ON I MADE ONE OF MY OWN. THE PROBLEM IS THAT THE WHATSAPP THAT I WAS USING WAS PURCHASED FROM HIS APPLE ID BUT AFTERWARDS HE REMOVED HIS ID FROM MY iPhone AND NOW MY APPLE ID IS IN USE . SO WHEN EARLIER I WAS TRYING UPDATE WHATSAPP IT WAS SHOWING THAT IT IS PURCHASED FROM A DIFFERENT ID. AND CANNOT BE UPDATED, NOW THE VERSION OF THAT WHATSAPP HAS EXPIRED . SO IF I DELETE MY WHATSAPP AND RE-DOWNLOAD IT AGAIN BUT FROM MY APPLE ID WILL I BE ABLE TO RETRIEVE MY WHATSAPP MEDIA AND CHATS.