Vat without any trading or activities ? Well it's only for residency and simply living here. I am sure there is an exemption for audits if you have no activities. I am not eligible for Pioneer package. Just a little over that age bracket. All of them require e channel fees nowadays from what I know.I think you are refering to:
Freelance Package: Starts at 6000 AED
Benefits: Eligible for 2 visas, access to a facilitated Freelance Hub, only service activities, not trading
Please note the "Freelance package" is not a freelance permit (as gofreelance.ae or with DubaiSouth), it is a company. So new UBO forms, VAT etc. are applicable. ESR is not applicable in your case I suppose. Concerning Ajman, do not forget to add e-channels fees.
FYI, within Ajman, you also have:
Pioneer Package: Starts at 5000 AED
Benefits: For investors 20-30 years old, Eligible for 1 visa, access to a facilitated Pioneer Hub, only service activities, not trading