I can't access my account. (Expired SIM, I can't receive verification SMS).

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Hi everyone. I can’t access my account because, even though I have the email and password, I no longer have the phone number associated with the account (my SIM expired and I can’t reactivate it). Every time I log in it says it will send a verification code via SMS to that number, but obviously I can’t receive it and so I can’t log in. Does anyone have any suggestions? Can’t the phone number be reset? Thanks to anyone who replies.