Purchasing ultra high speed bullet train at Shenzen North Railway

Tq for the answer Jan for my previous question.How about purchasing high speed bullet train ticket from SZ North 3ailway Station to Guangzhou South Railway counter?easy or not(for tourist which only speak.write in english Any english written signage there or any customer service(english spoken) will help?Than how many stop the bullet have?annoncement in dual language mandarin and english? Or any display screen that show us the railways that we stopped?tqvm