Dissapointing service

I app**** for the Barclay credit card,application was done and verification done as well,i was requested to send my 3payslip,proof of address and I'd copy and I was also sent the acceptance letter.However I received an email that not docs have been sent so I resent 2times however no feedback whatsoever and set a delivery and read note and got confirmation that it was read.I am dissapointed by the lack of service and how poorly my application was handled.