All merchants: R

R

• 

  Restaurant.com

  USD1 = 10
• 

  Ray-Ban USA

  USD1 = 5

  was USD1 = 3

  
• 

  Roberto Cavalli US

  USD1 = 4.5

  was USD1 = 3.5

  
• 

  Rentalcars.com US

  USD1 = 3
• 

  Reservations.com

  USD1 = 2.5
• 

  Radisson Hotels US

  USD1 = 2
• 

  Ring

  Up to USD1 = 2
• 

  rag & bone

  USD1 = 1.5
• 

  Rakuten Ichiba (Japan)

  Up to ¥1000 = 6.25

  
• 

  Rockport

  USD1 = 1
• 

  Razer

  From USD1 = 1