Amex Platinum offers: Spend $9.99+ on Scribd, Get $9.99 back (Upto 5 times for a total of $49.95) YMMV

American express (for platinum users) is offering a credit of $9.99 when you spend $9.99 or more on scribd.com. YMMV
Works upto 5 times for a total of $49.95
https://www.amexoffers.com/