Budget car rental - George

We hied a car on the 17th January 2025 (Friday) drop off Sunday 19th January 2025. My husband had to pay a deposit which is normal and they said it would take 3-4 weeks before the money is paid back. He has called 3 times already and the monies have still not been paid. This is totally ridiculous, and nobody in the office give a flying .......... We will never use Budget or Avis as they are under one roof at the George airport