Policy
Terms of service
What we do, what you agree to, and exactly how the money moves.
Last updated 11 September 2026.
What Simba is
Simba is a marketplace. Sellers offer sponsorship spots on things their audience sees — a race kit, a laptop lid, a car, a homepage. Brands bid on each spot in a public auction. We are not a party to what is advertised: we hold the money, publish the record, and release payment when delivery is proved.
How a bid works
Every spot is its own auction with a public price. A bid must beat the current leading bid by at least the minimum increment. Your card is charged when your bid takes the lead — not at the end of the auction. This is deliberate: a card authorisation expires in about a week and an auction can run for weeks, so we take the money and hold it rather than reserve it.
If you are outbid, the full amount is refunded automatically. You do not need to ask. A bid placed in the final few minutes extends the auction by the same number of minutes, so a late bid cannot win purely by arriving last.
The fee
Listing is free. We charge a 5% fee to the buyer, on top of the bid. Bid $1,000 and you are charged $1,050; the seller receives the full $1,000. The rate that applies to a deal is the rate that was shown when the bid was placed — we do not change the fee on a deal already in flight.
Escrow, proof, and payout
Money from a winning bid is held by us after the auction closes. It is not the seller’s yet. The seller delivers, then posts proof — photos, a link to the post, whatever the spot’s deliverable says. The buyer then has 72 hours to accept or dispute. Accept, or say nothing, and the funds are released to the seller. Dispute, and a human reads the proof against what the spot promised.
If no proof is posted by the deadline, or the event does not happen, the buyer is refunded in full — automatically, without having to ask.
Payouts run through Stripe. Sellers connect a Stripe account, and Stripe — not us — verifies their identity and holds their bank details.
The public record
Delivery is public. Accepted proof, completed deals, disputes and refunds appear on a seller’s profile and stay there. That record is the reason a brand can trust a seller they have never met, and we do not remove entries because they are unflattering.
The current leading bid on every spot is visible to everyone, along with the leading brand’s name and logo. If you bid, expect your brand to be shown publicly while you lead.
What may not be advertised
Brands declare a category when they bid. These categories are refused, and a bid carrying one is rejected before any money is taken:
- Adult
- Gambling
- Weapons
- Tobacco
- Illegal drugs
- Counterfeit
- Hate
- Political
Simba is for professional brand sponsorship. It is not an adult platform. We may remove any listing, logo, image or link that breaks these rules, and we may refuse or reverse a deal built on one.
Images and moderation
Uploaded images — surfaces, logos, proof of delivery — are published when you post them, and reviewed if they are reported. We can remove anything that breaks these rules at any time. If you see something that should not be here, tell us at support@onsimba.com and we will look at it.
You keep ownership of what you upload. By uploading it you allow us to display it on Simba for the purpose of running and recording the deal — including on the public track record after the deal is done.
Accounts
One account works for both sides: you can sell a sponsorship and bid on someone else’s. You may not bid on your own listing — a seller bidding up their own spot would make the public price a number they wrote themselves.
Changes
We will update these terms as the product changes, and the date at the top will say when. Changes never apply retroactively to a deal already in flight.