Remove Linked Account

I had previously posted regarding this issue. When I log into My Account I see two accounts linked. I had previously been listed as a secondary user on another customer's account. After corresponding with a representative  ( @ComcastMartin  ), he told me the solution was to contact the other account's holder and ask them to remove me as a user. The other account holder did that last week but I can still see this account when I login to My Account.