Old versus new email address CORRECTION

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My old email is “bcothran@charter.net”….new is “bcothran46@icloud.com”. You apparently have me paid up via my old Charter address. Can you recognize under current address? ‘Cothbigbucks’ is what I named a portfolio I set up….or can I give you last 5 numbers of credit card I last paid you with to confirm identities are same, if necessary.