I was diverted to Pet Chip Info at petchip.info when I Googled "Pet microchip registration". I filled in the forms and paid the £18 registration fee through PayPal, using my debit card. I received several emails from PayPal one of which confirmed setting an annual payment fee of £18. I did not think this was right so I researched PetChip and found that it is a fraudulent company and not recognised in the UK .
Pet Chip Info at petchip.info
I contacted PayPal who were brilliant and refunded my initial payment and cancelled the annual payments. They also promised to look into the company.