KewbzUK review for Amplius Customer Fields

We have 50,000+ customers so it would only allow us to use the PRO PLAN. the pricing plan should be based on the amount of customers using the app and not the amount of customers that signed up prior to the installation of the application. The plan states "Store additional data up to 10,000 customers" Well what if I only want to store data for our VIP members that only consist of 100 customers?