SuperSimpleSwap performs non-custodial atomic swaps between crypto and fiat using the OASIS protocol, developed by Nimiq, a cryptocurrency and crypto payment system combining true decentralization and everyday ease-of-use.
An atomic swap is a smart contract technology that enables the exchange of one blockchain asset for another without using centralized intermediaries, such as exchanges.
Atomic swaps use Hashed Time-Lock Contracts (HTLCs) and can take place directly between blockchains of different cryptocurrencies, or they can be conducted off-chain, away from the main blockchain (learn more).
Fastspot makes use of HTLCs on the Bitcoin and Nimiq network, as well as the Nimiq OASIS based HTLCs for off-chain assets — i.e., fiat money (EUR) for bank accounts that are capable of instant wire transactions.
It is normal that the atomic swap can take up to a few minutes as the blockchain networks need to confirm the transactions. If you have waited for more than 10 minutes without closing your tab and can confirm that you have a working internet connection, try first to reload the page.
If you are swapping crypto to crypto and you were able to send out your crypto but the swap is stuck or failing, after time-out of the swap (90 minutes) your wallet will automatically or manually reclaim your crypto. If your crypto for the swap was not sent out in the first place, simply start over.
If you are swapping fiat (EUR) to crypto (BTC, BEP-20) the OASIS protocol may still be waiting to recognize the incoming instant transaction and something might have gone wrong with your instant bank transfer. Please see What happens if my instant bank transfer is not recognized or was delayed?
If you are swapping crypto to crypto, or crypto to fiat (EUR), after time-out of the swap (90 minutes) your wallet will automatically or manually reclaim your crypto.
If you are swapping fiat (EUR) to crypto (BTC, BEP-20) likely your bank transfer was not sent out in time, was not sent as an instant wire transaction, had the wrong amount, or had an incorrect or missing reference number in the note field. Please see What happens if my instant bank transfer is not recognized or was delayed?
Your bank transfer can not be associated with the correct OASIS code. Please see What happens if my instant bank transfer is not recognized or was delayed?
If OASIS doesn't detect an incoming bank transaction that matches your atomic swap within the acceptable "instant" period, the atomic swap will simply time-out. Refund to the originating IBAN account happens automatically within 90 minutes if your bank supports instant transactions (IN and OUT). The refund can take around 5 business days if your bank did not support instant transactions and you still proceeded to submit the wire.
For the very unlikely event of an unexpected system outage, please keep the displayed swap ID for reference. Please also see Why might OASIS not detect my incoming bank transfers?
Some users from France have experienced problems with their banks sending instant transactions to the OASIS-EUR-HLTC. If your bank should be requesting details about the receiving party, please enter "(Recipient) DZ Bank AG, (Street) Platz der Republik, (ZIP Code) 60325 (City) Frankfurt am Main". We are currently investigating the reasons behind those issues and hope to solve them as soon as possible to the extent that we can control them. Please also see Why might OASIS not detect my incoming bank transfers?
The issue here is on your bank side (nothing to do with Fastpost or OASIS). There are typically three main reasons for this:
In all cases, call your bank and ask them to catch up to the modern times!
A refund will only occur if the atomic swap you initiated failed or expired.
You sent funds from an account that is not SEPA Instant OUT capable. The funds will be returned to the originating IBAN as a regular SEPA transaction which can take 5 business days.
The account (originating IBAN) you sent funds from is not in your name. OASIS will automatically refund to the originating IBAN. If that account is in the name of a remittance or other payment service provider, the funds should typically arrive there in 5 business days and you need to contact that remittance or payment service provider for further credit to your account.
If you have reviewed all answers, waited for 5 or more business days and still face unexpected issues with the swap or didn't see a refund of your money, please go to this form to submit your special support case. Please provide as much information as you can, such as swap reference number, involved crypto account address, bank account number or hash of blockchain transaction.