Basic level support is provided free of charge upon purchase of any Alibaba Cloud service.
For the Developer plan, you are billed a fixed price upon signup and at the beginning of each billing cycle (30 days).
Upon signup for Business or Enterprise plans, you are billed a minimum monthly service charge. You are then billed according to your usage of cloud products, starting from a minimum charge.
For detailed pricing information, see the Alibaba Cloud After-Sales Support page.