So be honest about that up front.
Not get people to pay a lot of money for the hardware based on decent plans and quotas, and then jack up pricing and restrict features almost immediately. It's a bait and switch.
Typical telco behavior though. Cox cable, Verizon, AT&T, so on. They even sold “price lock guarantee” as a feature, often a time limited promotion.
You don't become the richest person in the world by treating your customers well.