Disappointed in FNB

Im very disappointed with FNB, we fill up at Engen all the time and when ebucks come they don't even recognize our fuel spend. They asking for slips for proof seriously how was i to know i need to save slips. i spent R2900 on fuel for nothing. Maybe they should put more details on their adverti*****ts and stop misleading us. my ebucks now went down the drain so much ebucks. Hope other people are aware of this i had to learn the hard way. September is almost over meaning what ever i spent already on petrol is going down the drain also cause they wont even recognise the fuel purchases. Wow FNB wow sooo disappointed and annoyed nje or ****ed i don't know how i feel but m angry nxa