The expensive typo is not the PIN. It is the index. Serials are copied from SMS; indexes are copied from fading photocopies.
Payments happen on Ewale (ewalepay.com or *714*22#), not on this blog.
What you need
- Primary document, not WhatsApp hearsay.
The flow on *714*22#
- Read the index aloud.
- Buy the correct exam checker on *714*22#.
- Type the index once, look away, type the confirmation if the site asks.
Leading zeros
Keep them. They are digits, not decoration.
If something fails
- Used phone number as index: Start over with the real index. The voucher may already be bound.
Slow index, fast PIN. Not the other way round.