Business expenses on personal account?

Hi, just before lockdown I registered a business with companies house. I had an appointment with a bank to open a business account but because of lockdown I never went. I was going to apply online but wanted to go in to ask for some advice. So as of yet I do not have a bank account registered to the business, but have began making business purchases on my personal card. Small things, like website, little bit of promotion etc, I didn’t buy larger things like stock because of lockdown.