LastMinute.com review: Incorrect charges and information regarding BA flight change

We are a family of 2 adults and 2 small children and booked British Airways flights from London Gatwick to Malaga through lastminute.com. The original flights we booked were departing on 18.05.24 at 9.25am.

Approx 6 months in advance of our flights, BA changed our outward bound flight time due to a scheduling issue, which I understand is fairly common.

They moved our flights departing London Gatwick at 9.25am to 6.40am without our consent or any input from us. I called BA who were very helpful and understanding and said we were entitled to change our flights back to ones closer to the original time we had booked (9.20am) departing from Heathrow instead of Gatwick. BA said it was a simple change and there would be no charge but needed to be done via lastminute.com as I was unable to do it directly.

When I contacted lastminute.com they said this would be possible but would cost an extra £416.88 due to airline costs! this is incorrect information and bordering on fraudulent as I had just spoken to BA who said categorially there would be no airline costs.

BA also said they would ensure they would write this in the notes on my booking so it was clear to anyone from lastminute.com.

Following this I went back to lastminute.com (it is very difficult as you can't actually talk to anyone on the phone, all customer service is via chat bots) who reiterated it would still cost £416.88. I asked them to give me a breakdown of exactly what this charge was for and they were unable to tell me.

I asked them to please resubmit my request to change our flights back to the 9.20 Heathrow flights taking into account the information that BA had supplied in the notes on my booking. I then received an email from them saying they were unable to do this as there was no availability 3 days before or after the date I wanted to fly (which is in 5-6months time). This is also incorrect as there are several flights available.