Unemployed membership is available based on national rules:
2.4.1 Members dismissed, made redundant, having accepted a compromise agreement or having resigned as an alternative to dismissal from employment within the meaning of C.1 who notify the branch secretary in writing within six months of their loss of employment may achieve unemployed membership for 2 years from the date of dismissal, redundancy, agreement or resignation. This entitles them to retain benefits from the union for up to 2 years after they leave, provided they remain unemployed.
The cost is £4 per year for a maximum of 2 years.
An application form is available to download – unemployedapplicationrequest