Leaving Xfinity and moving to 5G - for how long?

Things have gotten too expensive for the speed we're getting. In the event we decide to return at a later date, what's the minimum period someone needs to not be an Xfinity customer to qualify as new business to the company and take advantage of a 5 year rate locked introductory plan?

It honestly felt odd speaking to the retention team trying to understand why someone who's demonstrated zero loyalty to them gets the best price, while those who have been with the company for a decade plus arent given at tue very least, the same consideration. Seems counter to the way everything works on the planet. Reward loyalty. Customers who have earned their place among preferred users exist in Hotel and Airline programs, but feels just the opposite here.

Anyway, back to the question around the waiting  period. Not going to switch names to establish a fresh account. We'll wait it out at the address, just curious how long that tends to be.

Thanks!