Poor service

I received a email on Thursday 16 July 2020 informing me of change of credit card . my old card will only expire in JUNE 2021 you stated that some courier company will deliver a new card you stated that the old card will be valid for 90 days Today on 20 July I wanted to pay a bill on the internet but was unable to I called your call center 4 times and nobody could assist me and they all simply put the phone down . now I'm not sure why absa decided to do this exercise during covid lockdown maybe you have some tracing chip in your new card. but It leaves me in the predicament that I cant use my card and I deem that totally unacceptable and will hold absa responsible for any costs I incur