I have a client who predates my use of whmcs. I moved his account to my new server using a tarball but apparently i created his account in whmcs directly. the usernames are different but domains are the same between the two and the password given in whmcs doesn't apply to the cpanel account.
I would like to simply remove this account from whmcs and import it from whm making all the settings accurate and allowing me to create invoices, new services, blah blah blah...
He depends on his email so I dare not delete his whm account. is there a safe way of doing all this? (or perhaps a better way?)