Hello 
Please bear with me as I have no idea on all of the correct legal terms I'm supposed to use, surrounding this....
So, back story, 18 months ago, the company I worked for was acquired by a larger, completely separate, company. Smaller company was on the verge of going bust and I think if we hadn't been acquired, we would not have been paid another month's wage.
The staff at smaller company were given notice that this would be happening as well as an assurance that all jobs would be safe and that whatever length of service we had accrued, would be carried over to new company.
When I arrived at new company, I signed a contract which I now see mentions two different dates as my commencement date. Our online HR system says I have been with company for 6 years (correct if including previous company) but our HR manager (who is different to the person who handled this) can't find my contract anyway and doesn't think this is the case.
Having emailed HR a few times for clarification I have had no response. I've taken screenshots of the online HR system (as someone obviously thinks I've worked there for 6 years) but am worried that were I to be made redundant, the company would insist that I hadn't worked there for 6 years. The fact that I haven't had a reply despite asking several times makes me feel a bit worried.
Where do I stand?
Sorry if not clear 