I'm designing software that's being designed with multiple tiers. Each tier has a specified amount of storage and specified number of actions an account can take each month. The issue is that we do not yet have a mechanism to enforce the limits so if a user goes over their monthly limit they can just keep adding files and taking actions. We do plan on having an enforcement mechanism in the future but there is no date on the calendar.
Does anybody have any data that suggests that this can erode the trust the user has in a product, even if they are technically getting more than they were promised? Any data on this or similar circumstances is appreciated.