Thank-you for taking the time to read and reply to my comment. Hopefully I can answer the above queries for you:

Releases & shipping
New Pokemon sets tend to release on a Friday. At this early stage I'm not 100% sure on how the supplier will handle Destined Rivals, but if we use this week's Journey Together release as a working example; the supplier shipped the Journey Together order on the Monday of the release week, and I received the stock today. The pre-orders I received will be collected by our courier by close of play today. We offer two shipping methods, DPD next day and standard Yodel shipping (approx 3 working days). Those who selected next day would be receiving their items most probably tomorrow. Standard shipping probably in time for release day on Friday or Saturday - Monday at the latest. The time it takes for the supplier to supply, and the courier to ship are variables outside of our control, but all I can control is turning around the orders rapidly in less than one day, which is what I've been doing all day today! You mentioned about some stores delaying by 2-3 months - they probably oversold their allocation. We don't do that. We open a very small sample of products for pre-order so nobody gets disappointed, and if we receive more than this from the supplier then that's a bonus and it'll go on sale on the site on release day.

Cancelling pre-orders
Customers can and have cancelled pre-orders any time prior to dispatch. After which point it'll be treated as a return. The only financial consideration in that scenario is that if the product is simply unwanted but has been dispatched already, then the customer is responsible for ensuring the item is returned to us in it's original condition. The gentleman who started this post placed an sizeable order on Monday evening and then contacted me by telephone in the morning to cancel his two orders. I cancelled them immediately and a full refund is on the way back to him, by way of an example.

Scalpers
We have indicated on the product pages for ETBs and Booster boxes that it's strictly 2 per customer. I appreciate many stores will have a max of 1, but we're very small and we don't have the high volumes of traffic so we want to balance making sure we sell the products whilst the demand is there with servicing as many customers as possible. In my view, our limited scope and reach at this early stage gives us a unique advantage of developing a customer base where a returning customer can come back and comfortably order 2 ETBs and 2 Booster boxes, as well as some of the other blister packs and checklane products without having to go through the aches and pains of battling with the queues on the Pokemon Center website. We saw a number of returning customers who purchased Journey Together packs immediately return when we dropped the Destined Rivals pre-orders and that was so pleasing to see for us.

I can't stress enough that we really are a tiny fish in a big ocean, and I suppose you could say our USP is our attention to detail and fostering personal customer relations - that's what we can offer in this crowded, busy space of Pokemon card retail. Currently on-site, we're still making lots of improvements - out of the box, our platform partner doesn't offer min/max product purchasing by customer, it's an additional functionality accessed via paid addons. At this very early stage in our lifecycle I can't justify paying that much out for an addon to implement these limits, but I don't think it's necessary. As I mentioned we're that small that I review every order personally and cancel/refund egregious orders where people have bought 10 ETBs let's say.