A method performed by a charging function for handling a subscriber's communication services, the method comprising: detecting (208, 304, 511, 610, 701) that a subscriber's credit account has reached or fallen below a credit threshold when the subscriber has multiple ongoing communication services consuming credit from the credit account; sending (209, 305, 512, 702) a threshold notification of the reached or fallen below credit threshold to a user equipment, UE, on which the subscriber has at least one of the multiple ongoing communication services; receiving (211, 515, 516, 703), from the UE, a response to the threshold notification with prioritization of one of the multiple ongoing communication services; determining (306, 704) if the response to the threshold notification has been received from the UE with prioritization of one of the multiple ongoing communication services: • if a response with prioritization of one communication service has been received, initiating (212, 311, 312, 517, 518, 519, 709) termination of all ongoing communication services except the prioritized communication service; sending (204, 213, 313, 518, 519, 710), to the UE, a status notification of that the prioritized communication service will continue and that the other communication services will be terminated; sending (213, 313, 711), to the UE, a resume notification of that the terminated communication services can be resumed after credit recharge; and providing (215, 314, 712) at least substantially all available credit to be available for the prioritized communication service; and • if a response with prioritization of one communication service has not been received, determining (307, 706) if information indicating a predefined prioritized communication service is available; and if information indicating the predefined prioritized communication service is available, initiating (311, 708) termination of all ongoing communication services except the predefined prioritized communication service. detecting (208, 304, 511, 610, 701) that a subscriber's credit account has reached or fallen below a credit threshold when the subscriber has multiple ongoing communication services consuming credit from the credit account; sending (209, 305, 512, 702) a threshold notification of the reached or fallen below credit threshold to a user equipment, UE, on which the subscriber has at least one of the multiple ongoing communication services; receiving (211, 515, 516, 703), from the UE, a response to the threshold notification with prioritization of one of the multiple ongoing communication services; determining (306, 704) if the response to the threshold notification has been received from the UE with prioritization of one of the multiple ongoing communication services: • if a response with prioritization of one communication service has been received, initiating (212, 311, 312, 517, 518, 519, 709) termination of all ongoing communication services except the prioritized communication service; sending (204, 213, 313, 518, 519, 710), to the UE, a status notification of that the prioritized communication service will continue and that the other communication services will be terminated; sending (213, 313, 711), to the UE, a resume notification of that the terminated communication services can be resumed after credit recharge; and providing (215, 314, 712) at least substantially all available credit to be available for the prioritized communication service; and • if a response with prioritization of one communication service has not been received, determining (307, 706) if information indicating a predefined prioritized communication service is available; and if information indicating the predefined prioritized communication service is available, initiating (311, 708) termination of all ongoing communication services except the predefined prioritized communication service. • if a response with prioritization of one communication service has been received, initiating (212, 311, 312, 517, 518, 519, 709) termination of all ongoing communication services except the prioritized communication service; sending (204, 213, 313, 518, 519, 710), to the UE, a status notification of that the prioritized communication service will continue and that the other communication services will be terminated; sending (213, 313, 711), to the UE, a resume notification of that the terminated communication services can be resumed after credit recharge; and providing (215, 314, 712) at least substantially all available credit to be available for the prioritized communication service; and sending (204, 213, 313, 518, 519, 710), to the UE, a status notification of that the prioritized communication service will continue and that the other communication services will be terminated; sending (213, 313, 711), to the UE, a resume notification of that the terminated communication services can be resumed after credit recharge; and providing (215, 314, 712) at least substantially all available credit to be available for the prioritized communication service; and • if a response with prioritization of one communication service has not been received, determining (307, 706) if information indicating a predefined prioritized communication service is available; and if information indicating the predefined prioritized communication service is available, initiating (311, 708) termination of all ongoing communication services except the predefined prioritized communication service.