Read the T&C's people. I didn't read all of them a...

Read the T&C's people. I didn't read all of them and came unstuck with Section 22, Technical Data. This is where they positioned the important clause that if I wanted to change anything I couldn't.
I booked a surprise trip away and unfortunately my partner had a work commitment that I wasn't aware of. So, 9 hours after booking I started the predictably tedious task of trying to change the booking, from an early July date to October off season. The time spent on the phone to their dreadful Customer Service team was arduous and unfulfilling and the countless tweets and DM's the same. The customer service team lied to me twice during various phone calls, they informed me things had been changed when they hadn't.
Eventually my flights were changed but they will not change the hotel booking, so I am left with a hotel in July and flights in October. I am now contacting the hotel directly and hopeful of encountering a human being who is reasonable. Fingers crossed.
I am guessing if you don't make a mistake they might be a good company but if you do you are most definitely on your own.