Learn Spanish (Latin America): La agencia hizo un reembolso rápido.

Hizo is the 'he/she/it' form of hacer (to make/do) in the preterite past tense. Hacer has an irregular past stem (hic-). If we spelled it 'hico', the 'c' would make a hard 'k' sound. To keep the soft 's' sound from hacer, Spanish changes the 'c' to a 'z', giving us hizo.

Why does rápido come after reembolso?

In Spanish, descriptive adjectives like rápido (quick) almost always go immediately after the noun they describe. While English says 'a quick refund', Spanish structures it as un reembolso rápido (a refund quick).

Why does rápido end in an 'o' here?

Adjectives must match the gender of the noun they describe. Since reembolso is a masculine noun (which we can tell by the word un), the adjective must take the masculine ending, making it rápido. If the noun were feminine, like una transferencia (a transfer), it would be rápida.

Can I use a single verb instead of hizo un reembolso?