📖 What you'll learn
“Credo ya mbao” is Sheng for 20 shillings of airtime – a small top‑up that many Kenyans need daily. Whether you are stranded with no credit, want to test a new number, or just need a few minutes of calls, buying 20 bob airtime should be easy and cheap. This guide shows you the fastest, most affordable methods, including using a reseller till (509947) that works even with Okoa Jahazi debt.
Methods to Buy 20 Shillings Airtime
| Method | Price | Works with Okoa? | Delivery Speed |
|---|---|---|---|
| M‑PESA Send Money (to recipient) | Ksh 20 | ✅ Yes | Instant |
| Official USSD (*544# for Safaricom) | Ksh 20 | ❌ No (fails if you have Okoa) | Instant if no debt |
| Airtel Direct (*544#) | Ksh 20 | ❌ No | Instant if no debt |
| Reseller Till (509947) – buys bundles instead of airtime | Ksh 20 → gets you 250MB data (or 20 mins on some platforms) | ✅ Yes (bypasses Okoa) | Instant |
Important: Most reseller tills do not sell plain airtime for Ksh 20 – instead, they give you a small data bundle (e.g., 250MB for 20 bob). If you specifically need airtime for calls and SMS, use the M‑PESA Send Money method or a direct transfer from a friend.
How to Use Till 509947 for 20 Bob (Data Bundle)
Some reseller platforms occasionally offer small airtime top‑ups. However, the most reliable way to use your 20 bob on Till 509947 is to buy a data bundle (e.g., 250MB for Ksh 20). Steps:
- Check the reseller’s price list for a 20 bob bundle (e.g., 250MB for 24 hours).
- Open M‑PESA → Lipa na M‑PESA → Buy Goods.
- Enter Till Number: 509947.
- Enter amount: 20.
- Confirm with PIN – the bundle is credited instantly to your line.
If you need voice minutes instead, look for a 20 bob minute bundle (some platforms offer 10–15 minutes for Ksh 20).
Why Small Airtime Purchases Often Fail with Official Channels
When you have an Okoa Jahazi debt, dialling *544# (Safaricom) or *544# (Airtel) to buy airtime will likely reject the transaction or deduct the amount from your loan instead. Reseller tills bypass this restriction because they are processed as “Buy Goods” payments, not airtime top‑ups.
Tips for Buying Credo ya Mbao Safely
- Avoid unknown WhatsApp sellers – many scammers offer “cheap 20 bob airtime” and disappear. Stick to well‑known tills or direct M‑PESA.
- Test with a small amount first – if you are trying a new reseller, send Ksh 5 or 10 first to confirm delivery.
- Keep transaction SMS – if something goes wrong, you will need the receipt to claim a refund.
- Use M‑PESA Send Money if you need actual airtime – send 20 bob to the person’s phone number. They can use the cash to buy airtime themselves.
Verified Merchant – Till 509947
Secure M‑PESA STK Push payments. Independent reseller platform – not affiliated with Safaricom or Airtel.
Experts in small‑value airtime and bundle purchases.
Last reviewed: 26 May 2026