Are you going to be following this up? Do you want compensation?
If so.........
you need to write to Hoseasons, listing all the things you were dissatisfied with. If you keep the letter fairly short and concise it will be better. In fact bullet point all the areas you were unhappy with. Advise them that you expect to receive a reply withing 28 days. Also include any photographic evidence that you may have.
When you get a reply, if it's to your satisfaction- yayyy to you, lol. Otherwise write again, explaining what areas are still not satisfactory answered to and again advise you expect a reply within 28 days.
If by the 2nd response you're still unhappy , you have two courses of action, you can either go via the small claims court or ABTA. Must warn you though, that holiday companies are EXTREMLY good at getting out of paying customers any money back (I know because that used to be my job- can you tell? LOL)
At all times keep your contact with them professional.
If you need any further advise gimme a yell, I'm always here....lol.
If you're just whinging about the holiday in general, I apologise for my ramblings- heh!