Our wallet had become excessively bloated resulting in some slightly delayed deposit crediting. When you hit deposit you should be assigned a new address. If you happen to send to an old address, it still should credit for the next week or so.
Are not you using blockchain.info API ?
Why would they use Blockchain API? lol... that would be a terrible idea.
They are definitely not using blockchain API, they are using the basic bitcoin server I think, they posted screenshots of the server console to provide proof for some of the issues. I have dealt with blockchain API in the past and its very slow and often times me out because of too many requests. Its not worth it.