as a refund(Example: In the case of cancellation of motor insurance policies, customers who have paid the insurance premium in full by a lump sum payment can be entitled to a percentage of the paid premium as a refund. Пазенко Георгий)
allow a refund(Example: Though not obliged Insurers customarily allow a refund. (Перевод. Страховщики обычно предусматривают возврат страховой премии, хотя и не обязаны это делать. Пазенко Георгий)