Blue Islands went into administration in November, leaving thousands of passengers with forward bookings out of pocket.
Since then, many have tried to recover their monies spent through banking schemes for both credit and debit cards.
However, in recent weeks some people in both Jersey and Guernsey have received text messages stating that Blue Islands was challenging their claims.
Liquidators Ernst & Young said that it was not disputing these claims for refunds.
‘If an individual would like assistance with their claim with their card provider please contact BlueIslandsLiquidation@uk.ey.com and the joint liquidators will assist where we can,’ a spokeswoman said.
‘The joint liquidators have not challenged any refunds from card providers.’
The Jersey Consumer Council has been offering free advice to travellers on how to secure refunds.
Chairman Carl Walker said his team had received the same response from the liquidators after receiving enquiries from concerned customers of the collapsed airline.
‘No-one is now employed by Blue Islands and the liquidators are saying it is not them, so it is unclear who might be challenging the process and where banks are getting this response from,’ he said.
‘Clearly the refund process is complex and still on a daily basis we are coming up with unique circumstances.’
He added that early on in the process he spoke to customers in Ireland who were told they could not get a refund until the date of the cancelled flight had passed.
‘Whether that is the technicality causing this issue we will only find out in time,’ he said.
‘But at the moment we are still trying to get more information on why people have received these messages.’
One islander who contacted the Guernsey Press after receiving one of the text messages said this possible situation did not apply to him, as his flight had been in December.
‘It’s hard to understand how Blue Islands – or someone on their behalf – can contest refunds for services the airline did not provide,’ he said.
‘It is also quite worrying financially, as we relied on the refund to help pay for the replacement flights we had to book at short notice.’
He added the message from his bank was even more of a mystery now, given the liquidators’ response.
‘If someone associated with Blue Islands is fighting customer refunds from beyond the grave without the knowledge of their liquidators, then that is really strange – and reprehensible.’