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Buying & Sending Bitcoin

This guide helps you buy Bitcoin and send your first payment even if you’ve never used crypto before.
Everything below is beginner-friendly, step-by-step, and designed to avoid common mistakes.


  1. Buy Bitcoin (BTC) using an app in your country
  2. Open your invoice link
  3. Send the exact BTC amount shown
  4. Done payment confirms automatically 🎉

🇬🇧 Buying Bitcoin in the United Kingdom

Section titled “🇬🇧 Buying Bitcoin in the United Kingdom”
PlatformPayment OptionsWhy We Recommend It
Coinbase (UK)Debit card, Bank transferEasiest setup and very clear interface. coinbase.com
Crypto.comDebit card, Bank transferFast registration and a simple mobile app. crypto.com
KrakenBank transferGreat for larger purchases or users who want more control. kraken.com
RevolutDebit cardConvenient if you already use Revolut. Works well for smaller, quick buys. revolut.com
  1. Download an app (Coinbase or Crypto.com are easiest).
  2. Add funds using your debit card or bank account.
  3. Buy Bitcoin (BTC):
    Purchase the amount shown on your invoice PLUS a small extra amount (e.g. 5–10 GBP) to cover the separate network transaction fee.

🇺🇸 Buying Bitcoin in the United States

Section titled “🇺🇸 Buying Bitcoin in the United States”
PlatformPayment OptionsWhy We Recommend It
Cash AppBank account, debit cardEasiest for beginners buy and send BTC in seconds. cash.app/bitcoin
Coinbase (US)ACH, wire, debit cardReliable and simple for first-timers. coinbase.com
GeminiBank transfer, debit cardClean mobile app and good security. gemini.com
Binance.USBank transfer, wireLower fees, better for experienced users. binance.us
RobinhoodACH, debitQuick buys, but withdrawals may be limited. robinhood.com

💡 Best for beginners: Cash App extremely straightforward and lets you send Bitcoin directly.

  1. Download an app (Cash App or Coinbase).
  2. Add funds via bank account or debit card.
  3. Buy Bitcoin (BTC):
    Purchase the amount shown on your invoice PLUS a small extra amount (e.g. 5–10 USD) to cover the network fee.

When you’re ready to pay, you’ll receive a unique BTCPay invoice link.
This page shows:

  • The exact BTC amount
  • A QR code for scanning
  • A Bitcoin address for manual copy/paste

⚠️ If the QR code doesn’t scan:
Simply copy the Bitcoin address and copy the exact BTC amount this works every time.

⚠️ Each invoice uses a one-time Bitcoin address.
Always pay only the address shown on your current invoice.


  1. Select your credit package your invoice link opens automatically.

  2. Open your Bitcoin wallet (Cash App, Coinbase, Crypto.com, Revolut, etc.).

  3. Tap Send Bitcoin.

  4. Choose one:

    • Tap Pay / Open Wallet (if shown), or
    • Scan the QR code, or
    • Copy + paste the address manually.
  5. EXTREMELY IMPORTANT:
    Enter the EXACT BTC amount shown on the invoice.

    🛑 DO NOT DEDUCT FEES
    Your wallet adds the network fee automatically.
    If the amount received is even slightly less, the payment will fail.

  6. Confirm the transaction.

Your invoice page will automatically detect the payment.
Confirmations usually take 10–15 minutes.


If You Use Base Wallet (or Any Modern Smart Wallet)

Section titled “If You Use Base Wallet (or Any Modern Smart Wallet)”

Wallets like Base, Rainbow, Zeus, and similar apps often support the Pay / Open Wallet button directly on BTCPay Server.

If you see this button on your invoice:

👉 Just tap it your wallet opens with the address and amount already filled in.
No scanning. No copying. No stress.


  • Only pay through our official domain: pay.urlittlesecret.com
  • Never reuse a Bitcoin address from an old invoice.
  • Bitcoin payments are final and cannot be reversed.

🚫 Common Mistakes to Avoid (Very Important)

Section titled “🚫 Common Mistakes to Avoid (Very Important)”

These are the most common reasons Bitcoin payments fail please double-check before sending:

  • Sending less than the invoice amount
    Even being short by 0.00000001 BTC will cause the payment to fail.
    👉 Always send the exact BTC amount shown on the invoice.

  • Manually subtracting network fees
    Don’t do this. Your wallet adds the fee automatically.
    👉 The invoice amount must remain untouched.

  • Paying from an old or expired invoice
    Each invoice uses a one-time Bitcoin address.
    👉 Always open and pay from your latest invoice link.

  • Sending the wrong currency
    Make sure you’re sending Bitcoin (BTC) not Lightning, not Bitcoin Cash, not another coin.

  • Copying only the address but not the amount
    If you paste the address manually, you must also manually enter the exact BTC amount.

  • Closing the invoice page too early
    Keep the invoice page open until it detects the payment.
    👉 It updates automatically once the transaction is seen.

If something doesn’t look right stop and double-check before confirming.
Bitcoin transactions can’t be reversed once sent.