I have an accountant account associated with the same log in as two accounts I am helping with. I sent an accountant invite but it keeps taking me to the original QB act

I hit accept invite but it doesnt give me accountant log in, it goes back to my QB log in.   I want to be able to be the accountant for those two accounts to allow me to undo some reconciliations.  Not sure how I can accept the invite and sign up as an accountant?