Buy two and send back the one that doesn't fit????
And pay for two plus return postage for one.
then wait/hope for a refund on the purchase price of one.
With no guarantee that either will be delivered within eight days.
With no guarantee that I'll be in to receive the delivery.
With the distinct possibility that a missed delivery will have been delivered by a private courier and will have to be collected from a holding depot twelve miles away ... DHL at Morley; and yes, I've had to do that several times because my sister keeps on ordering me stuff from Amazon as birthday presents.
Does the RFL genuinely want to sell this stuff in serious numbers?