transfer VIP days between each other.

I believe someone else could purchase a VIP membership for you. The gifter would need access to your account and would need to purchase once logged in to your account.

You might need to clarify with admin however by clicking the "Contact Us" link at the bottom.  

If it is another TER member, be prepared to inform admin that you had requested said member to sign you up for VIP membership for discretionary reasons. Otherwise you both might get banned for using the same IP address.

Both Reloadable (GreenDot) and Non Reloadable cards are both classified as PrePaid.

Reloadable cards have strict limits and eventually have to be activated with a real name and SS Number.

Non Reloadable cards are usually available for one time fixed amounts anywhere from $25 - $500. Once the funds are used, the card is useless. These cards usually require "registration" for online purchases otherwise a transaction can be declined. In most cases, registration involves a simple Zip Code verification but  verification of real name, address and SSN is never required unlike Reloadable cards.

To the best of my knowledge GreenDot verified (Real Name, Address, SSN) Reloadable cards are eligible for use with international transactions, all other are not. The law regarding these was changed last year and it has caused issues for those requiring additional privacy and less of a paper trail when purchasing VIP memberships as both SegPay and CCBill are both internationally based.