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In the Protocol of telephonic payment through credit card, the operator should not facilitate any personal datum of the customer to the interlocutor, and the conservation of some minimum necessary data should be foreseen for the purpose of posterior check of the transaction. In the telefónic Protocol of procedure for the change of payment account for bank domiciliation, the operator should confirm, also, the number of policy -or of policies- in which the headline wants to assign the new account number; once the change of current account carried out the change carried out should be communicated to the headline of the account, and the operator should be identified that makes the transaction of bank account change. If the company records the calls that the Protocols refer to, it will have to inform the customers of the fact that the call is being recorded (article 5 LOPD).