The Travelgate scandal continues to haunt parliament, with the legislature now seeking to recover the remaining R12.6-million owed by MPs and travel agencies that defrauded it by abusing travel vouchers.

Secretary to parliament Zingile Dingani said on Friday that the Parliamentary Oversight Authority would decide what further action to take after the liquidation of the implicated travel agencies resulted in parliament receiving just over R5-million of the more than R17-million it lost.

Dingani said parliament was convinced that it should seek the money through its internal debt collection procedures, with the action expected to affect all those identified as having defrauded the institution, including current and former MPs.

The money relates to fraudulent claims that were submitted through the Bathong Travel Agency.

"We are dealing with people who were clients and creditors of Bathong. Anybody who might have owed Bathong at that point ... this is the people from whom we will make the claims. It might include some MPs, it might be some other people too," he said.

Dingani said parliament was hoping to conclude the debt collection process before it was audited next year, as the auditor-general had raised the outstanding R12.6-million as one of the reasons why it had received an unqualified audit, not a clean one.

The saga has dragged on for more than six years and led to 31 MPs accepting plea bargains for their role in submitting fraudulent travel claims. ANC MP Nyami Booi, who declined the plea bargain offer, was handed a R50 000 fine or five years in jail.

Three travel agents, Soraya Beukes, Mpho Lebelo and Graham Geduldt, still face charges and have been advised by the Judge President of the Cape, John Hlophe to accept plea bargains when they appear in court on October 11.

Meanwhile, all DA MPs who have been claiming thousands of rands by driving instead of flying to their destinations will have to answer to the party.

DA leader Helen Zille said on Friday that the party's disciplinary structures would seek a full explanation from all MPs exposed by ID leader Patricia de Lille as having made thousands of rands a month by driving to their constituencies instead of flying.

The chief culprit is public enterprises spokesman Manie van Dyk, who claimed R275000 for road trips between Pretoria and Cape Town.

Commenting on De Lille's exposé, Dingani said parliament might be forced to tighten MPs' travel regulations further, but said this would have to take into consideration the need for them to visit remote parts of the country to conduct constituency work, many of which were not easily accessible by air.

The ANC said that while the MPs identified by De Lille had not broken any rules, it would encourage all MPs to exercise caution and good judgement when using their travel benefits.