A faster, cheaper, no-ID alternative to Western Union, MoneyGram, Remitly and bank wires — for anyone with a phone and a crypto wallet.
Sending mobile credit to a family member in Nigeria used to mean either paying Western Union 10-15% in combined fees and FX markup, or hoping a cousin in Lagos could stop by a kiosk and buy the top-up for you. Neither option works well. FillUpCoin lets you load airtime onto an MTN, Airtel, Glo or 9mobile number in minutes — the sender pays in Bitcoin, USDT, Ethereum or Solana, and the Nigerian subscriber sees the balance update on their phone before the sender even closes the browser tab.
| Sending $100 to Nigeria | Fees + FX | Settlement time |
|---|---|---|
| Western Union | ~$13 | 24–72 hours |
| Remitly / Wise | ~$6 | 1–3 business days |
| FillUpCoin (crypto airtime) | under $1 (crypto network fee only) | 1–5 minutes |
Figures are typical. Western Union and Remitly fees vary by corridor, payment method, and promotional pricing. FillUpCoin only charges the crypto network fee — $0.50 on USDT TRC-20, pennies on Solana, $1-5 on Bitcoin depending on mempool.
USDT on TRC-20 — fees under $0.50, settlement under a minute, no exchange-rate exposure for the sender.
You can also pay in Bitcoin (BTC on-chain), Ethereum (ETH), or Solana (SOL). The invoice is denominated in euros, so the sender sees the exact amount in crypto before confirming — no surprise exchange-rate movements.
The MTN network alone has over 80 million subscribers in Nigeria. In a typical urban household, every adult carries at least one prepaid SIM — often two or three, split across MTN for data, Airtel for voice, Glo for cheap international minutes. Students in Lagos routinely coordinate with family in the US to receive airtime instead of cash, because it's harder to lose, easier to use, and gets them data for WhatsApp group chats, school portals, and online banking apps.
Common senders include United States, United Kingdom, Canada, Germany and South Africa — anywhere there's a Nigeria diaspora with internet access, our service works. The only requirement on the sender side is a crypto wallet with a positive balance.
All four: MTN, Airtel, Glo, 9mobile. For MTN, Airtel and Glo we deliver direct top-ups straight to the number — no code to enter. For 9mobile we deliver by email voucher that the recipient enters on *223#.
For small-to-mid amounts, we are. A $100 transfer through Western Union to Nigeria typically has a $5-10 upfront fee plus 3-5% hidden in the exchange rate — total of about $13 lost on $100. Through FillUpCoin, the only extra cost is the crypto network fee: under $0.50 for USDT-TRC20, $1-5 for Bitcoin.
No. The airtime is credited directly to their number. They see the balance update by SMS from the carrier within minutes.
Yes. Each FillUpCoin order can be up to €200 (about ₦350,000 at current rates). If you need to send more, make several orders.
No. The sender just needs a crypto wallet with Bitcoin, USDT, Ethereum or Solana. You never see or touch a Nigerian SIM — we handle the carrier side.