Please help me cancel my crm account

Please help me cancel my crm account


I need to cancel my CRM account in order to use another Zoho CRM which we have set up in parallel. 
I received the following automated email from zoho CRM:

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Hello,
Mr Person has invited you to join XXXX ltd's CRM account.
Since you are already a part of ZZZZ CRM account and you are the only active user in that account, you will not be able to accept the invitation.
To accept this invitation you need to,
Delete ZZZZ CRM account. You can refer this  help document to know how.
Once you have deleted the ZZZZ CRM account, click  Join XXXX ltd's CRM account.
If you do not wish to accept this invitation, please click  Reject.
Regards,
Zoho CRM Team

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Unfortunately the instructions in the help document is pointing to a button that doesn't exist in my settings.

Please give updated instructions on how the account can be cancelled or help me to cancel the CRM account.

Thank you