JET WON'T CLOSE A PAID UP ACCOUNT

JET WON'T CLOSE OR SEND ME A CLOSED UP LETTER SINCE NOVEMBER 2020. ALL I KEEP RECEIVING AFTER OVER 30 EMAILS AND 20 PHONE CALLS TO A CALL CENTRE IS A PENDING FOR CLOSURE LETTER AND A STUPID APOLOGY FOR THE INCONVENIENCE. THEY HAVE NOT UPDATED MY CREDIT PROFILE SINCE AUGUST 2020 WHICH IS SAYING THE ACCOUNT OWES EVEN THOUGH THE ACCOUNT IS PAID UP. I CALLED AND SPOKE TO A KATLEGO WHO WAS VERY RUDE, WHO TOLD ME THERE IS A PENDAMIC AND ITS VERY EXPENSIVE FOR THE COMPANY TO SEND 1 CLOSED UP LETTER SO I HAVE TO WAIT UNTIL THEY SEND A BUNCH OUT, THAT WAS IN DECEMBER.