Our Dish service for both our RV and our upstate NY cottage are month-to-month pay-as-you-go. We change locals as often as daily, and on at least one occasion, changed it twice in one day with no hassles from Dish. We use the chat service and pre-written script that Bill mentioned, and the change nearly always goes quite smoothly. Once in a great while the CSR fails to flag our program guide for the update, but a second 1-2 minute chat has always fixed that. They've also changed our billing address on occasion along with our service address, but that's also easily fixed online with our MyDish.com account.