So I guess that IT glitch is more of an issue than they first thought. I was one of the people that received the cancellation email yesterday. Arrow sent an updated email this morning:
Dear Arrow Customer,
Unfortunately, a further slight technical error at our distribution centre yesterday led to an automated cancellation of approximately 150 website orders, along with relevant refunds; you should have also received a cancellation email.
We have been looking into the cause over the last 24 hours and we have now found the error and have been assured that this has now been fixed. We have identified and isolated all the affected orders and will make any relevant Reward Points refunds over the course of today. Unfortunately, due to the fact that refunds are being issued, we are not able to fulfil any of these cancelled orders, and you will need to place another order on the site to receive your titles.
We hugely apologise for the inconvenience this has caused, but if you place a new order, please let us know when you get your dispatch email and we will gladly add 500 Reward Points to your account as compensation. We believe there is plenty of stock to cover all replacement orders.
Many thanks, as ever, for your continued support and understanding,
Team Arrow