It'd be fine as it is, though it could do with a polish here and there, e.g. enter instead of put in; perhaps rewrite the Earn section so it goes '...Find It For Less. You don't even need to buy anything to earn cashback. Simply share offers...'
Not a typo tip, but it does strike me that the 'Post' element is redundant. The 'Share' element appears to do the same thing, and it'd be snappier to have three markers instead of four (Share. Earn. Buy vs. Post. Earn. Share. Buy)