I took a prime trial on 14th November as I thought with xmas coming ect it would be handy. on the 13th of December I went into my account and cancelled it so as to not be billed. roll onto today and I ordered 2 items and one was free next day "prime" , so I went into my account and discovered I was still a prime member . so I cancelled again then rang them up. according to the women on the phone I was still an active member despite cancelling twice online, she cancelled it and refunded me the £16 but just be wary that you might think you have cancelled but it clearly sometimes doesn't work. once my items arrive I am closing my account all together. Many times this last year they have had money for sneakily signing the kids up via their fire tabs things.