Checkout update: BuyUKeSim now supports 12 cryptocurrencies (USDT, USDC, TRX, BTC, ETH, BNB, SOL, LTC, DOGE, TON on multiple networks). This guide focuses on USDT/TRX via TRC20 - still a popular low-fee choice. For other coins, pick the matching network on checkout.
BuyUKeSim checkout supports 12 cryptocurrencies (USDT, USDC, TRX, BTC, ETH, BNB, SOL, LTC, DOGE, TON on multiple networks). This guide focuses on USDT or TRX via TRC20 - a popular low-fee path. Follow the steps so your order confirms and you get your eSIM QR code fast. Open UK eSIM checkout first.
1. Choose coin and network
On checkout, pick your coin (e.g. USDT (TRC20) or TRX (TRC20)). Send only on the network shown for that selection - wrong network = lost funds. For USDT TRC20, do not use ERC20/BEP20 unless you selected those options. See how it works.
2. Send the exact amount
The site shows the exact amount and a deposit address. Send precisely that amount; small rounding errors or wrong fees can delay manual review. Network fees are paid separately on-chain - do not deduct them from the invoice amount unless the UI tells you to.
3. Submit your TX ID
After broadcasting the transaction, copy your transaction hash (TX ID) and paste it where the checkout asks. That helps match your payment on-chain. If anything looks stuck, use contact with your order context.
4. After approval
Once the payment is confirmed, you receive the eSIM QR on your success flow (you will be guided from checkout). For activation steps, see activate UK eSIM on iPhone & Android.
Policies & trust
Digital goods: read refund policy and terms before paying. For a broader comparison of providers, see best UK eSIM 2025 and UK eSIM with crypto, no KYC.