Diners Club Card Poor Service

My Diners card was ****** approximately three months ago.I Stopped the card and requested a new card but haven't received a new card after three months and numerous requests.I tried to stop the card and was also unsuccessful. I have been with Diners for 30 years and their service has become appalling.I have requested senior management to contact me.I spoke and e-mailed a manager Samantha Apollis but her service was dreadful and unpleasant.It is a shame and I will not continue my business with Diners Club.