Carrefour - Delsey Suitcase / misleading the customer

Dear Sir/Madam,
I purchased a Delsey Octopussy Suitcase two weeks back at Carrefour Deira City Centre for AED 249.
When they said this deal of the day and it will not be available anymore in Carrefour.
But to my surprise I found that the same was offered at AED 169 now.
This is a clear case of misleading the customer.
Please arrange to refund the amount of AED 80 and oblige.
I already wrote the same complaint on your website but no reply.

Thanks,
Murali Dorai