My electronic invoice can't be used after downloading, and there are garbled codes on my mobile phone.

It should be that the mobile phone does not support the format of electronic invoice. You can send the electronic invoice to the Alipay ticket manager, and the system will automatically identify and convert it into a format that we can use.

First, Alipay search: ticket housekeeper

Second, the mailbox is used to receive invoices.

Third, send the invoice attachment directly to the ticket management, or send the invoice link URL to the ticket management by email.