A method of performing a switch from a first mobile network to a second mobile network by a mobile terminal comprising a secure element comprises the steps of: (a) requesting attachment to the first mobile network using a first identification data element, preferably a first IMSI, of a first subscription profile; (b) requesting attachment to the second mobile network using a second identification data element, preferably a second IMSI, of a second subscription profile; and (c) requesting attachment to the first mobile network. The second mobile network or another mobile network uses a confirmation data element, wherein the confirmation data element has the same format as the first and the second identification data element and is configured such that the attachment request is forwarded to a subscription management server in order to inform the subscription management server whether the attachment to the second mobile network was successful.