I think 'Peak' is active but when I scan the QR code to ride, there is no banner that details 'Peak' rate?

You may not see the banner if you have an old version of the Neuron App. Please ensure you have updated it to the latest version.
If you have the latest version of the Neuron App and you do not see the banner, this may be because there is no 'Peak' pricing rate. The banner will only appear when 'Peak' pricing is active.