Extremely disappointed by their customer service

I made an online purchase in December 2021 as a Christmas gift for my teenage son, after several enquiries, I was told three weeks later that the item was sold out and that I should opt for either a refund or substitute for another product for the same item. I expressed my disappointment and inconvenience but they didn't care so I opted for a refund. In May 2022, the same item was available online again so I reordered but again days went by without my order being acknowledged, I called them but nk response, sent a WhatsApp message but still no help from then I sent an email which was only responded to days later, I was told that they could not find my order and I was requested to provide proof of purchase. After emailing the proof of payment, I was given the same story as in December 2021. How could the sales team keep repeating the same mistake? A month later I still do not have an order number. The sales team is very *********** and they have a don't care attitude towards the customer, they don't respond to queries but they are able to accept the customer's money. Please stop with the false advertising to lure customers.