Quieres que te ayude a redactar la opinión para ese formulario? Puedo dejarla lista, clara y constructiva.
Si te parece, aquí tienes un borrador editable (puedes copiar/pegar y ajustar):
Here’s the English translation of the Spanish text you shared:

By invitation

The author of this review received a manual invitation to write their opinion about the experience they had with the company. This type of review is automatically marked with the label “By invitation.”

If you want it phrased more naturally (or more formally / more casual) for a specific context, tell me where you’re using it and I’ll tweak it.