I have had 18185 for a while now. I think I am supposed to be invoiced every month but so far it has been 6 weeks, 11 weeks, 9 weeks. Does anyone else get invoiced erratically? I don't really mind cos it's only ever a few pounds at a time, but it just seems a bit weird.

Mine are normally bi-monthly now.

I think the 18185 type of business sends out invoices monthly or when it is more than £1.50