Pres Les wants me to pay instalment for Oder that was not yet delivered.

I order something from Pres Les in July 2025. Received a communication on the 24 December that the order will be delivered. Unfortunately I was out of the province for Christmas holidays. After no communication for over 5 months I didn’t know they will still deliver my order on Christmas Eve. The order was delivered in 17 January 2026. I called Pres Les to check the status of my account and to arrange debit order, that’s when I was informed my Acc is in arrears . Pres Les expected me to start paying for the order that was not received. They want me to double the instalment and they threatened to black list me while is not even a month after receiving the order. The customer service employee who assisted me with the my enquiry when I called the customer care was very rude. I am the one who called customer service, I was sent from pillar to post until to someone who spoke very rude to me. I love their products but this is the last time I will be buying from them.