Charge back for part of an excursion not provided by a cruise line

(Im assuming it was a trip to Marrakesh, a city I know. The entertainment activities you describe only happen in the evening. This is a fact well known among travellers to Morocco.

In effect the cruise line was knowingly selling a product which was "significantly not as described" or SNAD as we call it in retail. Your position is that you would not have purchased the product if it had been accurately described.

Ive done several chargebacks over the years on a variety of things from hotels to airlines. If you paid with a credit card and the cost was over £100 then the bank or card issuer was jointly liable. As You have had no satisfaction with the cruise line then I would go to your card issuer. The card issuer will probably ask you if you have exhausted the complaints procedure of the companuy.

Why not post about this on the cruise critic forum? It's widely read. At least you can share your disappointment for others who might think of booking this excursion. The cruise companies also read it...

Was this the only excursion during the cruise or were there others that you went on? The excursion did take place but was of a very slightly shorter duration (one hour less than expected), with visits to one historic site rather than two, and I assume a medina, and with nothing happening in the market place. The cruise company have offered to refund half the cost of the excursion which seems fair to me. It’s not as if the excursion didn’t take place at all. You will probably find something in the T&Cs which enables the company to alter excursions from the advertised details.

Thank you for your advice and comments, I am happy you think I have a justifiable claim.

We were never given an opportunity to cancel.

I am absolutely fuming because we could have taken one of the other trips and we will probable not be in this part of the world again.
I have never used twitter.
We are still on the cruise sailing back home.

If you had not been given the chance to cancel the trip then I cannot understand why you were not given a full refund.

Were you given the chance to cancel when you knew it was for one site and 12 hours? If so then I can understand you being charged for it.

Personally I do think you should receive £260 refund the total cost of the excursion reading the explanation from the staff it looks as if someone has not been aware of the full details of the trip and no one wants to admit responsibility.

I'm not to sure about part refund on chargeback check with your bank,have you thought about about asking the question on Twitter (now known as X) many Companies respond to complaints when posted on that platform.