I have a similar issue. It turns out that it is their payment system upgrade.
Airbnb have nearly £4000 due to me from about June. Usually payment is made one day after the guest arrives, and it's been working fine. I only check my accounts once a quarter when I noticed that I was not being paid. At the same time I was getting text messages and emails with a link to update my bank account. I thought it looked suspicious, especially with a link, and reported it to Airbnb in June along with requested screen dumps. I was told, by email, a few days later to ignore these messages. I have just found out that they were real messages. Clearly customer service did not get the memo. So, I have had to remove my perfectly good bank information and input it again and wait up to a week for it to be verified before I can get my payments.
This is disgraceful Airbnb. We all know that there are people out there desperate to get hold of banking information. You need to think of a better way to contact your hosts with such an important change. Perhaps a flash message when one logs into Airbnb and a text or email telling hosts to do that exactly. My consultancy fees are gratis on this occasion.
I hope that everybody gets their money soon.
