Take your money then forget about you.
I ordered a Tiny Repel which arrived fairly quickly having been posted from China, around 10 days. It didn't work so I contacted customer services to report the matter and they said they would send me some newer replacement mats. After three weeks I contacted them again to say said mats hadn't arrived to which they replied they hadn't yet been sent out! I'm afraid this is a company who once they have your money don't care beyond that. If these mats don't work, if they ever arrive, I will be raising a chargeback with Visa.