全称:Customer service phone number
简称就很多,可以写成:
phone
phone munber
cus tel no.
customer phone no.
service no.
serv no.
很多种写法,如果你是说地道的英文,那就更多了
客服电话 customer service hot line
简写:CS
客服电话: Customer Service Hotline
简写:hotline
客服电话:telephone number (customer service)