Right now the company is severe swamped, it is peak season and smack right bang between Black Friday and Christmas with the biggest amount of orders / revenue we have ever experience, factor in GPU launch, DPD shipping issues, Royal Mail strikes and severe weather, yeah it is fair to say the entire company is bonkers busy, even with a 24/7, 7 days a week warehouse shift in operation the orders are still coming faster than we can pack them. Not a bad situation to be in but we will for sure be glad when we move into the new premises next year as this one is bursting at the seems.
As we put our order cut off as today as per DPD's recommendation we are expecting sales to slow down tomorrow and hopefully we shall begin catching up.
The Nitro is £1299, so cost to upgrade would be £250 right now.
The Pulse cost is unknown and though we expect them to cost more OcUK is planning to soak that up and offer the upgrade to the Pulse at no additional cost.
My suggestion would be buy one if your happy with price and just request a refund on your RMA. Alternatively wait and your card will be replaced in coming days/weeks.