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Thanks for the input. My boss(es) is aware of the situation, I have to go through him (or her) or his administrator regarding pay because I'm not allowed to contact the finance team directly, they chase it up and it either eventually gets sorted or I find out my invoices have been sat at the finance table for weeks un touched. He knows about it but it doesn't seem to register that the finance team are incompetent � as I mentioned they do this with expenses too.
This is the first time I have been on an 'invoicing system', so it didn't even occur to me about NI, the last thing I want is to also get in trouble! When I joined I was on invoicing, then payroll for a couple months then taken off after I said I had exams and therefore continued to be paid for ad-hoc work via invoicing. I cant remember what kind of contract I signed... so will the company be fully aware then that I'm not paying NI (through my job at least)? ? ?
I'm not working there over the summer so cant access the system where my proof of invoices are... I didn't send them to my personal email because they were acknowledged as received.
Before I was 'banned' from contacting finance and for my first pay cheque I had an email from them giving my pay date, so when it was late I politely and assertively asked for a chaps payment, but now finance don't reply anyway so I have no ammunition and an unresponsive boss!