Do China Telecom users need to pre-store telephone charges when opening roaming services in Hong Kong, Macao and Taiwan?

China Telecom users usually need to pre-store a certain phone bill to open roaming services in Hong Kong, Macao and Taiwan. According to the regulations of China Telecom, users need to pre-store a certain phone bill as a guarantee to open roaming services. The amount of prepaid phone bills varies from region to package, generally ranging from several hundred yuan to one thousand yuan. This guarantee will be returned to the user when the user closes the roaming service or refunds the fee. The purpose of prepaid phone bills is to ensure that users have enough balance to pay for calls, text messages and data when roaming. The specific prepaid phone bill amount and operation process may vary according to the user's region and specific package. I suggest you directly consult the customer service of China Telecom for the most accurate information.