Paying USDT USDC FixedFloat

1. To make a USDT or USDC payment, first select Lightning. If you have Bitcoin selected, FixedFloat will route the payment through the Bitcoin Network which has higher fees.
2. Choose the network you would like to send USDT or USDC:
   • USDC (Arbitrum), USDC (BEP20) or USDC (Solana)
   • USDT (Solana) or USDT (Tether)
3. Verify data and click “Exchange now”.
   

   FixedFloat can use our Lightning Invoice system to make the payment and minimize fees.

   ⚠️ If you want to change network, or coin method, you must do so before you hit “Exchange now”.

   If you change coin mid flow, you will need to wait 30 minutes for the invoice to expire so that a new invoice can be generated and used by FixedFloat with your new coin / network choice.

4. Copy the details exactly to your exchange for the correct coin type. For the system to reconcile the invoice, the amount must match exactly what is in the FixedFloat window.
   

   ⏰ You now have 8 minutes to make the payment from your exchange or wallet. This timer is initiated by FixedFloat.

   At the bottom of FixedFloat you have the payment details for your exchange or wallet.

• It takes a minute or two for the exchange to process the withdrawal but the confirmation is almost instant with FixedFloat and the available networks.
  

  

1. Confirm Invoice Payment. Return to your Payment Gateway. If your payment was successful, the screen will automatically update to show “Invoice Paid.”

• You will have acknowledgment emails from both FixedFloat and Sequence in your inbox!

  From Sequence:

  

  From FixedFloat:

  

• Bybit is not a Lightning-enabled exchange, so it can’t be used to pay Lightning invoices.
• Bybit does support on-chain BTC transfers. Please note that each invoice generated will have a unique address.
• If you would like to use the lightning network, we suggest downloading Muun Wallet and setting up a wallet. For step-by-step setup instructions, visit:
• You can then send funds from Bybit to your Muun wallet and settle using the Lightning Network.
• When using FixedFloat (paying by USD), this is a third party service. You need to select Lightning first, before selecting your coin / network. This is because FixedFloat is able to settle invoices with the Lightning Network.
  • Please note that once you start the flow with FixedFloat you have 8 minutes to make the transaction. If you change coin mid flow, you will need to wait 30 minutes for the invoice to expire so that a new invoice can be generated and used by FixedFloat with your new coin / network choice.
• Alternatively you can pay your invoice using another exchange with lightning payments enabled. Refer to your exchange’s official guide below for step-by-step instructions:
  • Kraken: How do I send bitcoin on the Lightning Network?
  • OKX: How do I withdraw Bitcoin (BTC) with OKX’s Lightning Network?
  • KuCoin: Depositing and Withdrawing BTC using the Bitcoin Lightning Network on KuCoin
  • Binance: How to Use the Bitcoin Lightning Network to Deposit and Withdraw BTC on Binance

• If you’d like to pay your Sequence invoice in USDT or USDC, you can use Trust Wallet together with FixedFloat — a third-party service that converts your stablecoins to BTC (via Lightning Network) to settle your payment automatically.
• For step by step instructions please visit:

  https://trustwallet.com/blog/guides/trust-wallet-faqs

When scanning the QR code, Bybit’s app sometimes parses the payment data incorrectly and adds extra parameters to the address (for example: USD, or an amount at the end of the string).

This causes the app to reject the address and display an error like “The address provided doesn’t match the selected chain type.”

Solution:

Please copy and paste the BTC address and amount due manually from your Sequence Payment Portal instead of scanning the QR code.

This is a Bybit UI issue — Sequence cannot correct it from our side.

This message appears when the payment address on your invoice has expired or is no longer valid

Solution: Generate a new invoice to get the correct payment address.

Please return to the Sequence Invoice Portal or use your browser’s Back button to reload the previous page.

A new invoice with the correct address will appear under the “View Invoice” tab.

If your payment arrives after the invoice has expired, FixedFloat will show a message indicating that the order has expired and will request a refund address, as shown in the example.

Solution:

Enter your refund address in the field provided and click “Make a refund.”

Once you receive your refund, generate a new invoice and start the payment process again.

Please return to the Sequence Invoice Portal or use your browser’s Back button to reload the previous page.

If the amount you send doesn’t exactly match the invoice total, FixedFloat will reject the payment and display a message like “You sent the amount less than necessary” or “You sent the amount more than necessary.”

Solution:

Enter your refund address in the field provided and click “Make a refund.”

Once you receive your refund, generate a new invoice and restart the payment process:

Please return to the Sequence Invoice Portal or use your browser’s Back button to reload the previous page.

No, with this new method your invoice is automatically reconciled in our system — the good news is you no longer need to send us your TxID.