Utterly useless online booking and telephone service

I have been trying to book tickets online and on the Cinecentre phone app for the past 40 minutes. I have tried SIX TIMES. Each time it gets to the final step after I've inserted all credit card payment details, okayed it on my phone, etc. and it FAILS every time!!!!! Very, Very FRUSTRATING and such a waste of time. Please sort this out. I have had this experience in the past ... sometimes it works, but usually it does not! Also, please get your telephone answering up to speed. I tried phoning the call centre and it just rang and rang for 15 minutes before I gave up. What kind of useless operation do you run, when your online booking doesn't work and you can't book via telephone?? Get it sorted out please!