At least you *were* enough to get more than cost-of-living - mine this year was a pitiful 2% (less than c-o-l) which worked out to £1.37 a day before deductions!  

The worst thing, though, as you say was not being recognised for what you do. You could ask them, if you haven't already, what job title they see you as having.  A good catch-all word, I've found, is co-ordinator - try that one on them.  What were they calling the position when you took the job in the first place?  It must be on a contract somewhere ...

If you do decide to look elsewhere, good luck with that!