My friend knew my account details and "borrowed" my account to be toxic and racist

One of my friend knew my account details and "borrowed" my account to play rank with one of his friend (because he is in gold and his friend is in bronze so he took my account to play with him). Since it is not his account he flamed everyone like there's no tomorrow and got my account banned for 14 days. Then he told me, 'hey I borrowed your account and sorry but I got you banned. Oops.' Now I have a 14 day ban and he's back playing in his own account. I can't change my password because I have no access to the email I used to register anymore and changing passwords require a valid code from that email address. When the ban ends he'l just take my account to boost his friend again and continue being toxic. I sincerely hope that both of them gets a ban for toxicity, even if they are my firends.

Sorry for my crappy English, English isn't my first language.