Outdated online ordering experience

I enquired about stock availability via email, got a quick response but I think the process for enquiring, ordering and purchasing products is seriously outdated. It's a waste of the customer's time to be notified that there is not stock, when it's present on the website, and you aren't able to order the product anyway? It's a strange user experience.

I notified Brand Shuttler that it's a poor process and a waste of both of our time for no outcome, his response was terrible in terms of my experience in customer service.

"You enquire about stock,

I provided an answer

Thank you, and have a nice day"

In future, I think it's advised you thank a customer for their feedback and look at improving the process? Anyway, won't be 'requesting' stock from them ever again or supporting them.