I cannot find the UK phone number for general enquiries through their website.

I am only travelling by Turkish Airline. It is the reservation document and invoice that I received through the travel agency.

What do you mean by itinerary?

I have been calling TA but all the numbers I have found have taken me either to the wrong area of question or just not gone through. Beforehand, when I have called, they were very vague in answering some questions and before I could ask anymore they had rushed to hang up.