Receiving payments Monzo.me should now work with a few exceptions described by @Jami in the linked post above (must have had a prepaid beta account that was then upgraded). 
We had a bug around 10 days ago now where a small number of payments to a Monzo.me address were not loaded correctly into the account due to the upgrade. The root issue has since been resolved and I have confirmed that as of today, all affected payments have been correctly applied or refunded (be aware that refunds through card networks can take up to 10 days to appear from the time we refund it).