I have been with my company for 11 years and so I have requested 12 months off from work as a gap/sabbatical year which was approved by management. 3 months is covered by annual/long service leave. The remaining 9 months would be taken as Leave Without Pay. During my time off, I am not permitted to work elsewhere and I am still employed by the company although my account will be temporarily suspended. HR is insisting I sign a letter outlining the conditions of my leave, one of which is that the company would no longer be liable for any payments or redundancies if upon my return there is no role for me. Why would I not be entitled to the 11 years of service PRIOR to my time off if I was to be made redundant upon my return?