All branches out of stock, can't order online

Hi there, So I'm trying to purchase an Xbox elite controller from Makro using the mRewards points on my Makro card. I can't use these mRewards points online, so I must make a purchase in a store, fine I can deal with that. Now no store in the country currently stocks this item so I have to order online, but now I can't redeem my mRewards points, which is a deal-breaker. So I went to the Ottery branch and spoke to someone there who told me the only possible solution for me to get my item by using my mRewards is to order online and then return it in-store, then take it back from the returns kiosk and pay for it at a till. A bit of a convoluted process, but I was willing to do this, only to find I can't because I'm unable to order the item online and specify a collection branch if the item is not in stock at that branch.

Your online service is crippling your business, the mRewards programme is great but not when you can't redeem points online, and now I can't even order an item for collection unless a specific branch already has it in stock...in which case I'd rather just go buy it in store.

Can someone please assist me in getting this item to a branch so I may purchase it in store, I am done trying to use an online portal which, unfortunately, has limited functionality.