To reproduce:
- Open a banner
- Select amount $5. Select payment method and Continue
- Banner suggests a monthly donation amount ($2.75)
- Go back to step 1, change donation amount to $50 and Continue
- Suggested monthly donation amount is still $2.75, should have changed to $9
See the TODO at start of frb.updateUpsellAsk. Not sure if there's an easy fix for this, or it needs a larger rework of the monthly suggestion code.