I cannot believe that I can t talk to any agent ab...

I cannot believe that I can t talk to any agent about my rewards statement. I ve been trying for a week at least four phone calls, left voicemails and never return call. I have been out of the states and I am unable to use maybe try a reward expired on the 16th I have requested they be extended till the 22nd.This is the first time I receive so poor customer service not even a phone call that would tell me they couldn t do it very poor! I should ve rated customer service One or lower!