Should I sign any contract upon registration ?

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    No, you don't need to sign any type of contracts during registration. All our system operates on the pre-paid basis. Once you have zero or about zero negative balance your account and services will be suspended, monthly or DID fees will not be charged. But please be carefully, if you don't pay for your DID after three days from invoice, your DID may be released and we cannot guarantee that the same number will be dedicated to you next time.