Particle money back guarantee

Instructions:

If you are a first-time buyer and would like to activate your 30 Day Money Back Guarantee, just follow the steps below:

• Email [email protected] to request a refund and to
  receive the return address. Include a copy of your receipt (or a
  note with your order number, name, email address, phone number)
• On receipt of the items you will receive a refund, this can take
  between 3-5 business days to be reflected in your account.
  Refunds can only be made to the original payment method.
• Existing users who create a secondary account with a different
  email address will not be eligible for the 30 Day Money Back
  Guarantee.