LastMinute.com – Unhelpful and rude customer service in relation to wrong itinerary created by lastminute.com

I have plans to travel to Chile in Feb 2025. For internal travel in Chile. On 21st Dec 2024, I booked a return flight ticket from Santiago to Calama +Hotel accommodation + rental car for 24th to 27th February 2025 from lastminute.com (BOOKING ID : [protected]) However I recived a confirmation for 24th to 27th December 2024 when I have no plans to travel and will be here in UK. When I called the customer services they insisted that I had booked tickets fir December and not February 2025. After getting no help and going round in circles unhelpfully, I requested to change the package to 24th Feb - 27th Feb. I was told hotel dates can't be changed but flights can be changed to which I agreed. However after chasing repeatedly it hasn't been changed, each time getting different response. I found the customer services very unhelpful and am still waiting for my tickets to be changed. It feels like I have been scammed and utterly harassment while dealing with rude customer service. I will be raising it with Ombudsman and writing to newspapers and on social media to highlight the issue if its not sorted asap.