Mum and Dad are guarantors for my house. They have just purchased a new house and now my bank wants me to reapply for a new loan I want to know my rights and cannot find it in my contract please?

Mum and Dad are guarantors for my house. They have just purchased a new house and now my bank wants me to reapply for a new loan I want to know my rights and cannot find it in my contract please?
773-202-luna