How to increase memory space for Hr.my?

Hi, our company is interested in using hr.my for leave management. However, we realised that the memory space is only 100MB. Thus, my employer is worried that there will not be enough memory space, when we going to expand our business in the future. I had read through your crowdfunding and I am still confused with some parts. I understand that with each sponsorship, the account storage will be increased by 250 MB; USD5/mth is one sponsorship, and the storage of all HR.my users will be increased by 1 MB per sponsorship. Does that mean if my company sponsor USD5/mth, our account storage will immediately increase by 250MB plus 1MB for each employer and employees' accounts? Or If we will just like to purchase more storage at one go, how much does that cost?

Thanks for your reply.