Hi,
I'll help you out in merging the Mandrill account with Mailchimp.
I did the merging for a client couple of days ago and I guess they have given a deadline of April,27.
I'll follow this workflow to merge the accounts.
[login to view URL] domain. (Accounts created after December 1, 2015 wont need this.)
2. Validate DKIM and SPF settings.
3. Connect Mandrill and Mailchimp accounts.
What I'll be needing-
[login to view URL] credential Mandrill,Mailchimp and wordpress admin.
If I need more info I'll let you know.
Looking forward to hear from you. Dont hesitate to knock me if you have any query.
Best Regards
Foisal