After searching through the smallprint in the terms and conditions you will find the return address in Rugby. I today have sent my goods back to this address along with a letter asking them to acknowledge my cancellation. Send via recorded delivery. I actually received the goods ahead of any payment being taken out of my account which made it a bit suspicious but the bank can not stop any further payments until something has been taken to show a traceable reference. However today the £3.95 has been taken out, but the reference shows as Dermacella.com and not as Stemcellset.com 08000885638 as it states on the website. I will report further if I hear back from the return of goods.