Pushing voucher used to API

a:5:{s:5:”APIId”;s:36:”7E77E6A6-68C8-40B7-96F1-E38690882ADF”;s:6:”APIKey”;s:24:”U3mP7oxKvXl8SPPLY9HtIQ==”;s:10:”CardNumber”;s:20:”TO-CS-TB081274502520″;s:13:”externalrefno”;s:0:””;s:9:”VoucherID”;s:12:”tbwelcome500″;}