Seriously?
There is such a thing as a stupid customer. But I am guessing you are one of the "everybody gets a trophy" crowd.
Sure I understand your point, and good customer service is a great way to encourage repeat business. But here is a costumer that rather than understanding the reason why, has elected to publicly complain about the retailer.
There is no proof that Wanstalls is to blame, a's it could have been a mistake on the part of the CFO, or perhaps wanstalls was short staffed due to illness, family matters, staff on vacation, etc... could be many reasons.. but the retailer is not given the chance to respond.
I can recall reading a number of complaint threads that the retailers were able to respond to and often the customer was the one being unreasonable.
Also. Want a good example of a stupid customer? The ######s that waste the staffs time chatting and telling stories without ever buying something. They cost the retailer real customers.