Toyota Alberton reneged on their offer

I went to Toyota Alberton on the 29th December. Chose the car and was given a quote which was to expire in 7 days. I asked specially about the expiry date of the offer as we were on holiday. Toyota called the next day to say the offer was only until 31 December. The dealer principle said the quote had 2 conditions. If the price remained the same in 2026 the 7 day condition would apply but the condition that said the price ruling at time of delivery app**** in this case. This should have been explained.