The SNP's Julie Ford accused Tory counterpart Mick Green in a series of tweets.
On Scotland Tonight, the SNP leader was also quizzed on indyref2 and her domestic record.
Denise Findlay was expected to investigate general election candidate Neale Hanvey.
Figures published by ISD Scotland show the number has increased by 55 on last year.
Politicians will seek to win over Scotland's voters as they gear up for the general election.
Jackson Carlaw has ruled out the prospect of indyref2 during Boris Johnson's premiership.
An Ipsos MORI survey found 44% of voters will pick Nicola Sturgeon's party on December 12.
Neale Hanvey had been due to contest the Kirkcaldy and Cowdenbeath constituency.
Nicola Sturgeon is demanding indyref2, an 'escape from Brexit' and an end to austerity.
The Liberal Democrat leader has succeeded in a bid to stop the SNP from distributing a leaflet.
The party is pledging 'no to indyref2' as its pitch to voters ahead of the December 12 poll.