Yes. If you make a purchase, and the merchant refunds it, as soon as the funds have been returned to the card issuer, the refund is applied to your card.
You may see the refund in your transaction list, but not applied to your balance yet. That is ok and expected; as soon as the reversal/refund is complete on the merchant's side, it will be applied to your balance.
When the refund is applied, your displayed balance will increase.
All Laso cards accept refunds the same way as any other prepaid card. Any delay receiving the refund is solely due to the merchant or issuing bank; some merchants take up to 7 business days (working days Mon-Fri, not including holidays) to process refunds.
Please note: Occasionally the refund will not explicitly show in your card's transaction history and the original transaction will still show as 'Authorised, Not Settled' while the funds have actually been refunded and you can spend them.