We've been having ongoing problems with VAT on postage being charged/not being charged or incorrectly shown on invoices for UK, EU and Rest of World since our website went live almost exactly 5 years ago. We've had five support tickets for the same issue in the last 18 months. For an inexplicable reason, it works for a period of time before going pfft and breaking again.
Finally, after all this time, we have managed to get the problem fixed. I cannot rate Visualsoft, the company, highly because this is something that has been causing intermittent problems for five years which have caused significant problems for us to correctly account for VAT that should have been charged but wasn't or appears to have been charged but hasn't been. However, as of today and entirely thanks to Leigh from Triage and Telephony Support we finally have the problem fixed and we cannot thank him enough for achieving this.
We're not sure why it's taken five years to get this right, particularly as it appeared to be correctly working when the site went live, but the very fact that it has periodically broken over and over and over, clearly suggests that it was the IT equivalent of duct tape and cable ties that had been used to make it appear that it was working.
A big personal thank you to Leigh for his efforts to resolve this problem.