It is important to note that if you are changing your plan in the middle of the billing cycle you can opt into Next Issue right away, but if you are waiting until the next billing period, you have to wait to get the subscription. (goodereader.com)
If the Prime Rate causes an APR to change, we put the new APR into effect as of the first day of the next billing period after the start of the January, April, July or October billing cycle for which we calculate the APR.. (rbfcu.org)
When upgrading your account you will receive an upgrade invoice for the additional amount owing until the end of your current billing period, then you will be invoiced at the new rate for your next billing period. (help.sharesight.com)