New Release: 100th Anniversary Of The Battle Of Somme 2016 UK £5 Silver Proof Coin

So, this coin was advertised as having just 1916 individual copies to commemorate the 100 year anniversary, with 4000 total. Was showing as 90% sold this morning, then suddenly ten minutes later they double the individual mintage to 4000 and total to 6000.

Anybody else notice this? Is it allowed. Has it occurred before as a trick by mints when a coin is popular.

I rang them and they said it was a mistake due to differences in overall mintage as this coin is in another set. I mentioned that the differential mintage between the individual coin and total mintage hadn't changed, just the mintage of the single coin. The representative then seemed a bit confused and said I can speak to a manager, who then wasn't available.

It's taken away a huge amount of confidence I had in The Royal Mint.