Final answer:
There are two main postage payment methods for pre-canceled stamps: purchasing stamps directly from the post office and using a postage meter.
Step-by-step explanation:
For pre-canceled stamps, there are several postage payment methods available.
One method is to purchase pre-canceled stamps directly from the post office. These stamps are usually sold in bulk and allow businesses to prepay for a certain number of postage units. The business can then use these stamps as needed.
Another method is to use a postage meter, which is a digital device that calculates and prints the exact postage amount for each piece of mail. Postage meters are commonly used by businesses for their convenience and efficiency.