VAT should be paid quarterly by direct debit. Here's the HMRC direct debit link gov.uk/pay-vat/direct-debit
If you pay by direct debit, HMRC collect the VAT due on the 10th of the month following the VAT period end. If you pay by bank transfer you have until the 7th.
HMRC bank details
sort code 08 32 00
account number 11963155
reference 9-digit VAT registration number