Please note: All gas refund programs have been deprecated.

Due to the fundamental design an open blockchain like Ethereum, it is impossible to refund gas fees back to the sender. These fees for adding transactions to blocks are paid directly to validators on the ETH network (regardless of whether a transaction has been successful or failed).

Also, 1inch network never holds, receives, or maintains custody of these funds, as it only searches for the best routes amongst decentralized protocols.

Other articles on the similar topic:

What is gas on Ethereum?

What do I need to start swapping on 1inch?