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31 August 2016, 08:18 | Updated: 31 August 2016, 10:09
The Labour party is being called unprofessional and embarrassing for stopping people voting in the leadership election because they used a swear word on Facebook.
It is just one of the reasons given for refusing membership, with others including tweeting in support of another party and being rude in an email.
More than 50000 applications for registered supporter status have been rejected, with claims it's part of a plan to get Jeremy Corbyn out.
Other members have told HEART they are barred after putting something inappropriate on Facebook.
Jilly Ballantyne has been told she can't register because she was a member of the SNP, despite not being able to vote for them.
She has been banned from the party for five years.
Scottish Labour refused to do an interview with Heart.
Party bosses said the leadership contest has been open, fair and transparent.
Strathclyde University's politics Professor John Curtice says it does the Scottish party no favours