It doesnt surprise me one bit, your webnote support is simply terrible!
I purchased the same item as the OP, on the same day, and its been 3 weeks since i got in touch and i still havent had a proper response yet, out of 3 absolutely useless automated responses.
The first attempt nobody even bothered to reply to for a week, and the 2nd attempt took 3 days and simply responded saying you've sent me the RMA details, nothing more. The 3rd, earlier today, truly highlights the sort of customer support being offered - simply a blank email response.
You sold me something i didnt ask for, and all ive asked for is a full refund and it to be collected at a convenient time. Something which clearly was promised to the OP, i've asked for no more, no less.
I've contacted you within the timeframe im legally entitled to inform you, and well within the 'satisfaction guarantee'

timeframe you claim to extend that to.
The only alternative left to me if this isnt dealt with correctly is to contact the credit card company, inform them of events and the refusal to cooperate with consumer laws, and request they reverse the payment themselves.
I've spent 3 weeks leaving messages via a solution you offer and there has been zero effort to address the issue, no apology for taking £320 of my money and giving me something i didnt ask for, or for hiding and refusing to be responsible for your actions.
On the crazy assumption that i get the refund im entitled to, it'll still take upto 30 days before that refund will be processed, meaning that because i ordered from OCUK and they cant fulfil their orders correctly and accept responsibility for it promptly, it's going to be around 8 weeks before im even at square 1, cash back in my hands, and able to find a reputable place to purchase the item i tried to order.
2 months wasted, because I opted to place an order with OCUK and not the rival store i'd usually use in Horwich.
I've kept my disgust with the service (or lack of) to myself so far, rather than posting about it on here as the OP did, assuming OCUK was reputable and would correct a mistake they made, but clearly that hasnt worked, and meanwhile the OP complained publicly, highlighted the poor customer service and the lack of response in the time which was promised to him (and well outside that), and his case was dealt with 2 weeks ago! So here i am, complaining publicly, not because i want to make a scene, but because apparently its the only way OCUK will do the job they're legally obliged to do, rather than ignoring the customers complaints because they shipped the wrong item.
It shouldnt come to public complaints, but it worked for the OP and doing thing privately has not only been useless, but its convinced me never to purchase anything from OCUK again, responding to a support ticket with a blank message, simply to remove it from the system queue is nothing short of sticking 2 fingers up in the customers face.