For the complete documentation index, see llms.txt. This page is also available as Markdown.

Payment methods

helodata accepts most major payment rails. Add one in Billing → Payment methods → Add new.

What we accept

Method
Notes

Credit / debit card

Visa, Mastercard, American Express, Discover, JCB

Wire transfer (ACH/SWIFT)

Pro+ plans; instructions on the invoice

PayPal

All plans

USDT / USDC

TRC-20, ERC-20, BSC; manual confirmation up to 1 hour

Alipay / WeChat Pay

For CNY billing accounts; coming via local PSP

Adding a card

  1. Billing → Payment methods → Add card.

  2. Enter card details — handled by our PCI-DSS Level 1 PSP, helodata never sees the PAN.

  3. The card is verified with a $1 hold that's released immediately.

Default vs backup

You can store multiple payment methods. Mark one as default — that's the one charged for subscriptions and auto top-ups. Backups are used only if the default fails.

We recommend at least two on file: a primary card and a backup. A failed default during a renewal cascades into a 403 account-suspended on the gateway if balance also runs out.

Wire transfers

For Pro+ plans, wire instructions appear on each pending invoice:

Funds clear in 1–3 business days for ACH, 1–5 for international SWIFT. We email when received and apply to balance.

Wires for amounts >$10,000 typically include a small fee on your bank's side — factor that in.

Cryptocurrency

USDT / USDC payments are processed via a self-service flow:

  1. Billing → Payment methods → Crypto top-up.

  2. Choose amount → choose chain (TRC-20 cheapest fees).

  3. Send to the one-time address shown — do not reuse, the address changes per payment.

  4. Balance is credited after 1–6 confirmations (typically <1 hour).

Refunds for crypto top-ups are paid back in the same currency, to the source address; allow 3 business days.

Updating a card

If your card was reissued (same number, new expiry), the PSP usually auto-updates via card-network refresh. Otherwise:

Payment methods → {card} → Update expiry / CVV → re-verify with a $1 hold.

Removing a payment method

Click the trash icon. You can't remove the last payment method if you have an active subscription — cancel the subscription first or add a replacement.

Currency-method matching

Card networks settle in your card's native currency; we display the equivalent in your default currency (set in Address & tax). Cross-currency charges may incur a small bank FX fee.

For lowest cost: keep your billing currency aligned with your card's currency.

API

Cards can't be added via API for PCI-DSS reasons — that flow has to go through the hosted dashboard form.

Common pitfalls

  • Card auto-renewal failure — most often an expired card. Set a calendar reminder for your card's expiry month.

  • Wire without reference — without the invoice reference in the wire memo, our reconciliation team has to manually match — expect 1–3 days extra to credit.

  • Wrong chain for crypto — sending USDT-ERC20 to a TRC20 address loses the funds. Double-check the chain before sending.

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