-Standig order TCredits in triplicks: 125TC or more
-Standing order : S builder co-op Unit or Standing order IAHB.
And the rest you can plan, depending for your target in SFI:
If you want to earn more affiliate: gift card, if you want to keep or EA BTL range: TCredits can buy. You must organize their activities according to their needs, but those mentioned above are primordial.