how can I change payment type form Credit Card to Debit Card
We can accept any debit card that's also a Visa or MasterCard.
However, you don't have to pay your Linode invoices with just a credit card. From our doc on Billing and Payments:
We accept Visa, MasterCard, Discover, and American Express. We also accept PayPal, as well as checks and money orders (which must be in USD) made out to “Linode, LLC” and sent to our office address. Please contact support before paying with check or money order. Note that we do not accept bank/wire transfers.
That guide also has instructions on how to update your card:
If you still have questions, you can reach out to Support and we'll be able to look into it further for you.