To get a contract, you can visit an electronic shop or a provider store. You may choose wither a permanent contract at a fixed monthly rate, or a pay-as-go plan that costs more per month, but is more flexible.
To cancel a subscription, contact your service provider. There is usually a substantial fee for cancelling before the agreed upon termination date. At least a month before your contract is finished, you should have the option to renew, or terminate.
A pay-as-you-go plan requires the user to purchase a SIM card (or entire phone) and purchase credit to use for calls and text messages. Additional credit can be purchased from affiliated phone stores or through the service provider website.