Forgive me for asking, but just so I understand, are you saying that you may be able to receive Holy Communion twice a day, as stated in the Code of Canon Law, but yet a question still remains as to once a day? Looking at the OP he said, as you stated, receiving on two days, Saturday and Sunday. Just trying to clarify. Another point of clarification is that the Saturday afternoon Mass the OP was referring to typically contains the Sunday readings, since according to Jewish tradition Sunday would begin after sunset on Saturday, so the OP could have been referring to receiving Holy Communion during two Sunday services. Again, please forgive the questions, but I’m trying to understand your response.