Claim Back Once again a problem

Here we go again. July I submitted an invoice for claim back which took 2 and a half months for pay back. Here I am trying to claim back again, for two same items I claimed back before. I can see this going the same route as the first claim. I submitted one invoice on the 23/10/2015 and the other 28/10/2015. I sent on both days these claims through in the morning. I then call a day later to confirm that all has been received and that everything is correct cause receiving an auto response with a reference number means nothing. So the one on the 23/10/2015 started with me having to resubmit. And the one on the 28/10/2015 I also had to resubmit. Thinking after the last claim and struggle of 2 and half months these current claims should be correct now. I left it as I was told all was ok after resubmitting and that I should give it 2-3 days. I have done so, and I see still no payments to me. So I called again. Spoke to 2 different people and both have different stories.<br> Now they are saying it was not put through as a claim as it was cancelled due to some reasons which I was not aware of. Now been resubmitted by them. Now to wait again. ARGGG