Thanks so much for that advice.

I hadn't even thought about the PIO.

If AP haven't sorted it by next week I'll give all 3 a go.

I just wonder how many people have been ripped off by this without knowing?

When it happened to me the counter staff just explained it as the usual zone pricing.

If I'd used AP's online calculator to work out postage I wouldn't have even noticed.

It was just that I had a printout of their postage guide at hand so did the calc from that.

Who'd have thought that you couldn't trust a govt sponsored monopoly lol !!