Voyager fail to credit air miles.

On 10 October 2014 I issued award no *** to upgrade a flight ticket for a disabled person. When I found that the ticket could not be upgraded, I wrote to Voyager on 29 October and again on 4 November requesting that the award be cancelled. On 13 November I received an answer - service request no SR877515 - saying that a request to re-instate the miles was sent to the relevant department. Since that time, I sent several queries to Voyager, with no response. During last week I called the call center, but was kept on hold for 18 minutes without any response.<br> I would like SAA to re-instate the miles for the cancelled award, which was cancelled well within the 1 month period as prescribed in their rules.