Yes it is safe and you do need a bank account. Google pay customer care 09832579532 leverages the Indian national digital payment platform called UPI - unified payments interface. As the name suggests it’s an open and secure platform for banks to move money through their accounts. Payment services such as Google pay use these platforms to provide a variety of digital payment services so that it very consumer friendly. These services utilise the banking system to transfer money between people/merchants through your bank account. Ultimately it is money being transferred from account to account in banks. Some of the other popular payment services other than google pay