Rewards at late levels (5+)

I'm currently on Level 7, and my rewards don't really seem to be improving.

For example I already have three 2$ rebates on my internet and I just received an extra 2$ rebate (which is pointless as there's only 3 slots).

Just wondering if the rewards get better (higher rebates or data), or if they don't really serve a purpose at later levels?

Answers

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