# Stablecoin payments

## Troubleshooting payment issues
### Why am I seeing an `insufficient funds` error?
If you received an insufficient funds error when trying to complete a payment using crypto, this means that you don’t have **enough stablecoins** (USDC, USDP, USDG) and **gas** (ETH, SOL, POL) to complete this purchase. You will need to fund your wallet accordingly and retry.
### Why am I seeing `There was an error sending your transaction. Please try again or contact support.`
This message can sometimes mean that:
* The wallet doesn't have enough crypto to cover the gas fees. Stablecoins don't automatically cover these fees.
* If you're using a cold wallet, try using a hot wallet for the payment instead.
* You may have crypto, but not supported stablecoins. Fund your wallet with supported stablecoins on Base, Solana, Polygon, or Ethereum.
### Why have stablecoins been deducted from my wallet when the payment wasn't successful?
If you notice a deduction on your wallet but the payment didn't successfully complete during checkout, allow up to 48 hours for your stablecoins to be reversed. If this doesn't happen, reach out to us specifying this issue and we can investigate the transaction status further.
### Which stablecoins are supported?
You can pay using the following stablecoin options:
* USDC on Ethereum, Solana, Polygon, and Base
* USDP on Ethereum and Solana
* USDG on Ethereum
### How do I request a refund if I paid using crypto?
To request a refund or return for a product you purchased using crypto, you must contact the business that you purchased from. You can find their contact information either:
* Under the relevant purchase in your [Link account](https://app.link.com/purchases).
* In the email receipt you may have received from the merchant after your purchase.
## General FAQ
### How can I pay using crypto?
If a business has **Pay with Crypto** enabled, you can select crypto during checkout.
1. Select **Crypto**, enter your phone number and email address and click **Pay**.
1. You will see messaging that your information will be saved with Link for faster payments in the future.
1. Select the stablecoin you want to pay with and click **Select a connected wallet**.
1. A pop-up will appear. You'll be asked to sign that you have ownership of the account. Click **Confirm**.
1. You should see an overview on your email, selected cryptocurrency, and attached wallet. Click **Pay $XX USDC**.
1. A pop-up of your selected wallet will appear where you will be asked to confirm your transaction. Click **Confirm**.
1. Once confirmed, the transaction is complete.
You may receive a confirmation email from the merchant regarding your purchase. You can confirm that the purchase was successful by looking at the movement of funds in your wallet or by accessing your [Link account](https://app.link.com/).
For future purchases, you'll be able to checkout with Link for crypto payments.
### How can I remove a saved crypto wallet from my Link account?
To remove a saved wallet, access your [Link account](https://app.link.com/wallet) and select the relevant crypto wallet. Click **Remove**.