Hi @Ayisha_B
I have a similar problem. You have been sending me VAT invoices for a while (through the post, after you have received my monthly payment), but I have just noticed that the last one I received was 1st December for my Bill of 23/11 - so I am missing VAT invoices for my 22/12 and 24/1 Bills!
Please can you send me invoices for those 2 Bills and make sure that VAT invoices are correctly set up for future Bills?
Many thanks!