Paid account

[abla]

Hello friends, 

I had been using Zoom for a couple of years joining in people talks. that was I had a free account, then. but last year I thought, I might try to do some talks myself so I bought a paid one. but I never used it much or and I wasn't successful at it. As it happened I had to change my bank account, it got hacked. so this year after my paid account finished and Zoom, couldn't get their money, They keep sending me emails saying to pay. ? How can I tell them I have no need for a paid account? 

Can someone advise me pls, and I hope that I still can Join other zoom rooms without trouble? 

Thanks for your help in advance .

email address *********** thanks 

Abla